| 400 U20 Men 2024 to 54.0 | Head to Head Top 10 |
| Rank | Perf | | | PB | | Name | | Year | Coach | Club | Venue | Date | |
| UKA WORLD JUNIOR STANDARD: 46.50 |
| 1 | 47.01 | | | 46.94 | | Sam Lunt | | 2 | Andrew Fraser | Wirral | Mannheim, GER | 22 Jun 24 |  |
| 2 | 47.36 | | | 47.36 | PB | Alex Houchin | | 3 | Stewart Marshall | Worcester | Sportcity | 29 Jun 24 | |
| 3 | 47.48 | | | 47.48 | PB | Thomas Bennett | | 2 | Jim Kidd | Taunton | Yeovil | 11 May 24 | |
| 4 | 47.51 | | | 47.51 | PB | Stanley Chevous | | 1 | Lee Bowker | Ipswich | Stratford (CT) | 26 May 24 | |
| 5 | 47.67 | | | 47.67 | PB | Demari Gumbs | | 2 | | Windsor Slough Eton & Hounslow | Reading | 12 May 24 | |
| 6 | 47.86 | | | 47.30 | | Alexander Beck | | 2 | | Winchester | Eton | 17 Aug 24 | |
| 7 | 47.90 | i | | 47.90i | PB | Otis Irwin | | 2 | | Windsor Slough Eton & Hounslow | Sheffield | 11 Feb 24 | |
| 8 | 47.93 | | | 47.93 | PB | Dylan Purton | | 3 | Steven Munday | Medway & Maidstone | Gillingham | 1 Sep 24 | |
 UK 10 TARGET: 48.00 |
| 9 | 48.09 | | | 48.09 | PB | Henry Stewart | | 2 | Stewart Marshall | St. Albans AC | Eton | 9 Jun 24 | |
| 10 | 48.16 | | | 48.16 | PB | Ben Heron | | 2 | | Glasgow Jaguars | Birmingham | 20 Jul 24 | |
| 11 | 48.46 | | | 48.46 | PB | Harry Bradley | | 1 | Darryn McAtee | Newport H | Cardiff | 15 Jun 24 | |
| 12 | 48.48 | | | 47.85i | | Dylan Mcculloch | | 1 | Francis Smith | Central | Birmingham | 20 Jul 24 | |
| 13 | 48.65 | | | 48.65 | PB | Tom Waterworth | | 1 | Derek Darnell | Huntingdonshire | Loughborough | 10 Jul 24 | |
| 14 | 48.68 | | | 48.68 | PB | Rhys Bethell | | 1 | | St. Albans AC | Birmingham | 20 Jul 24 | |
| 15 | 48.72 | | | 48.19 | | Mickey Ayling | | 1 | Andrew Taylor | St. Edmund Pacers | Loughborough | 19 Jun 24 | |
| 16 | 48.74 | | | 48.74 | PB | George Pittwood | | 2 | Andrew Kennard | Walton | Birmingham | 20 Jul 24 | |
| 17 | 48.81 | | | 48.81 | PB | Jack Organ | | 2 | Derek Osborne | Brecon | Swansea | 10 Aug 24 | |
| 18 | 48.95 | | | 48.11 | | Omar Bajo | | 1 | Bill Walker | Edinburgh AC | Grangemouth | 11 May 24 | |
| 19 | 48.97 | | | 48.97 | PB | Zuriel Nwogwugwu | | 1 | Roy Dickens | Blackheath & Bromley | Birmingham | 20 Jul 24 | |
| 20 | 49.05 | | | 49.05 | PB | Rowan Pearson | | 2 | Daniel Brooker | Brighton & Hove | Eton | 9 Jun 24 | |
| 21 | 49.06 | | | 49.06 | PB | Ben Sinclair | | 3 | | Manx | Birmingham | 20 Jul 24 | |
| 22 | 49.08 | | | 49.08 | PB | Rory Summers | | 1 | Neal Edwards | City of Plymouth | Birmingham | 20 Jul 24 | |
| 23 | 49.09 | | | 49.09 | PB | Caleb Mcleod | | 2 | Steven Doig | Pitreavie | Grangemouth | 5 May 24 | |
| 24 | 49.10 | | | 49.10 | PB | Findlay McGill | | 1 | Mike Bennett | Worcester | Nuneaton | 8 Sep 24 | |
| 25 | 49.1 | | | 49.1 | PB | William Rabjohns | | 2 | Mark Pauley | Poole AC | Poole | 17 Aug 24 | |
| 26 | 49.14 | | | 49.11 | | Joel Houslin | | 3 | Gary Telfer | Thames Valley | Eton | 1 Jun 24 | |
| 27 | 49.20 | | | 49.20 | PB | Nicolas Maczugowski | | 1 | Neal Edwards | City of Plymouth | Exeter | 28 Apr 24 | |
| 28 | 49.25 | | | 49.25 | PB | Luke Parker | | 2 | Richard Harris | Rotherham | Hull | 30 Jun 24 | |
| 29 | 49.26 | | | 49.09 | | Samuel Mowa | | 2 | | Blackheath & Bromley | Eton | 1 Jun 24 | |
| 30 | 49.39 | | | 48.70 | | Robert Marlow | | 3 | Brian Darby | Coventry | Birmingham | 20 Jul 24 | |
| 30 | 49.39 | | | 49.39 | PB | Noah Ridgeon | | 1 | Donovan Reid | Belgrave | Birmingham | 20 Jul 24 | |
| 32 | 49.4 | | | 49.82/49.4 | PB | Matthew Davis | | 2 | | Manx | Douglas | 6 Jul 24 | |
| 49.82 | | | | | | | | | | Birmingham | 12 Jul 24 | |
| 33 | 49.42 | | | 49.42 | PB | Cosmo Johnson | | 2 | John Henson | Sheffield & Dearne | Sheffield | 1 May 24 | |
| 33 | 49.42 | | | 49.42 | PB | Henry Jonas | | 3 | Tim Ash | City of Norwich | Loughborough | 7 Aug 24 | |
| 35 | 49.46 | | | 49.46 | PB | Zachary Crowther | | 2 | David Sadkin | Herne Hill | Bromley | 21 May 24 | |
| 36 | 49.47 | | | 49.47 | PB | Evan Wilson | | 2 | Francis Smith | Pitreavie | Grangemouth | 11 Aug 24 | |
| 36 | 49.47 | | | 49.19i | | Thomas Abbott | | 3 | Martin Cook | Cambridge & Coleridge | Lee Valley | 11 Aug 24 | |
| 38 | 49.49 | | | 49.49 | PB | Edward Enser | | 3 | James Thie | Bracknell AC | Winchester | 17 Aug 24 | |
| 39 | 49.50 | | | 49.50 | PB | Oliver Parker | | 2 | James Wright | Rugby & Northampton | Birmingham (U) | 7 Sep 24 | |
| 40 | 49.58 | | | 49.58 | PB | Aodhan Corr | | 2 | Andrew Fraser | Wirral | Stretford | 28 Apr 24 | |
| 41 | 49.59 | | | 49.35 | | Harry McPhee | | 2 | David Lothian | Falkirk | Stirling | 18 May 24 | |
| 41 | 49.59 | | | 49.59 | PB | Connor Foley | | 2 | Vanessa Hammett | Kingston & Poly | Portsmouth | 1 Jun 24 | |
| 43 | 49.64 | | | 49.64 | PB | Harrison Garcia | | 2 | | Swansea | Swansea | 10 Aug 24 | |
| 44 | 49.68 | | | 49.68 | PB | Elliot Lloyd-Uzoegbu | | 1 | Bill Boyd | Corby | Birmingham | 20 Jul 24 | |
| 45 | 49.69 | | | 49.69 | PB | Alex Glew | | 2 | Katie Hewison | Chorley ATC | Stretford | 13 Apr 24 | |
| 45 | 49.69 | | | 49.69 | PB | Callum Fox-Byrne | | 1 | | Deeside AAC | Deeside | 8 Jun 24 | |
| 47 | 49.70 | i | | 48.61 | | Zico Jones | | 1 | TJ Ossai | BFT Track Academy | Lee Valley | 7 Jan 24 | |
| 50.11 | | | | | | | | | | Lee Valley | 11 Aug 24 | |
| 48 | 49.71 | | | 49.71 | PB | Vincent Chikukwa | | 2 | | Birchfield H | Birmingham | 20 Jul 24 | |
| 48 | 49.71 | | | 49.71 | PB | George Whincup | | 3 | | Vale of Aylesbury | Birmingham | 20 Jul 24 | |
| 50 | 49.73 | | | 49.73 | PB | Jay Sanders | | 1 | | Invicta East Kent | Ashford | 11 May 24 | |
| 51 | 49.74 | | | 49.74 | PB | Danny Trowell | | 1 | Christine Taylor | Epsom & Ewell | Bromley | 30 Jul 24 | |
| 52 | 49.77 | | | 49.77 | PB | Matthew McKenna | | 1 | Martin Norman | Walton | Guildford | 26 May 24 | |
| 53 | 49.8 | | | 49.93/49.8 | PB | Aaron Mills | | 2 | | St. Mary's Richmond | Ewell | 12 Jun 24 | |
| 49.93 | | | | | | | | | | Twickenham | 15 Jun 24 | |
| 54 | 49.82 | i | | 49.67 | | Henry Parker | | 1 | Stuart Kerr | Rotherham | Sheffield | 10 Feb 24 | |
| 49.90 | | | | | | | | | | Loughborough | 29 May 24 | |
| 50.2 | | | | | | | | | | Doncaster | 18 May 24 | |
| 55 | 49.83 | | | 49.83 | PB | Ben Nolan | | 3 | Trevor Painter | Wigan & District | Loughborough | 19 Jun 24 | |
| 56 | 49.84 | | | 49.84 | PB | Rhys Chadwick | | 1 | | Woking | Birmingham | 20 Jul 24 | |
| 57 | 49.86 | | | 49.86 | PB | Owen Jones | | 2 | Ryan Spencer-Jones | Unattached | Mesa AZ, USA | 2 May 24 | |
| 57 | 49.86 | | | 49.15i | | Grant McEachern | | 1 | Stephen Wallace | Cumbernauld | Birmingham | 20 Jul 24 | |
| 59 | 49.87 | | | 49.87 | PB | Jamie Phillips | | 2 | | Kilmarnock | Grangemouth | 5 May 24 | |
| 59 | 49.87 | | | 49.87 | PB | Corey Shepherd | | 2 | | Saffron AC | Nuneaton | 9 Jun 24 | |
| 59 | 49.87 | | | 49.87 | PB | Jack Kinrade | | 1 | Colin Lancaster | Shrewsbury | Bury | 18 Aug 24 | |
| 62 | 49.89 | | | 49.89 | PB | Will Steadman | | 2 | Martin Branfoot | Chelmsford | Stevenage | 7 Jul 24 | |
| 63 | 49.91 | | | 49.91 | PB | Kane Smart | | 2 | Philip Jones | Colwyn Bay | Deeside | 8 Jun 24 | |
| 64 | 49.97 | | | 49.97 | PB | Kieran Bouwmeester-Reid | | 2 | | St. Mary's Richmond | Bracknell | 22 Jun 24 | |
| 65 | 49.99 | | | 49.99 | PB | Ethan Rollings | | 1 | | Medway & Maidstone | Gillingham | 14 Jul 24 | |
| 66 | 50.02 | | | 50.02 | PB | Jordan Phillips | | 2 | | Kilmarnock | Kilmarnock | 12 Jun 24 | |
| 67 | 50.04 | | | 50.04 | PB | Toby Wright | | 1 | Steve Shaw | Taunton | Yeovil | 27 Apr 24 | |
| 68 | 50.06 | | | 50.06 | PB | Jack Wootton | | 1 | Pam Rayment | Birchfield H | Birmingham | 20 Jul 24 | |
| 69 | 50.09 | | | 50.09 | PB | Niall Hutton | | 3 | | Sutton & District | Carshalton | 17 Aug 24 | |
| 70 | 50.12 | | | 50.12 | PB | Osian Parry | | 1 | Phillip Warwicker | Cardiff Archers | Gloucester | 24 Jul 24 | |
| 71 | 50.13 | i | | 49.80i | | Joel Burgess | | 3 | Ian Burgess | City of Norwich | Lee Valley | 4 Feb 24 | |
| 51.19 | | | | | | | | | | Winchester | 17 Aug 24 | |
| 53.3 | | | | | | | | | | Great Yarmouth | 28 Apr 24 | |
| 71 | 50.13 | | | 50.13 | PB | Harry Parker McLain | | 1 | Colin Lancaster | Vale Royal | Nuneaton | 8 Sep 24 | |
| 73 | 50.20 | i | | 49.44 | | Ben Greenleaf | | 2 | Eddison Williams | Ipswich | Lee Valley | 4 Feb 24 | |
| 50.67 | | | | | | | | | | Lee Valley | 6 Apr 24 | |
| 50.7 | | | | | | | | | | Bury St. Edmunds | 12 May 24 | |
| 73 | 50.20 | | | 50.20 | PB | Ebuka Nwokeji | | 1 | Ty Holden | Shaftesbury Barnet | Eton | 28 Apr 24 | |
| 75 | 50.2 | | | 51.22/50.2 | PB | Harry Appleton | | 1 | | Preston | Blackpool | 11 May 24 | |
| 76 | 50.22 | | | 50.22 | PB | Euan Pinder | | 1 | Gary Howells | Chiltern | Watford | 15 May 24 | |
| 76 | 50.22 | | | 50.22 | PB | Nathan Rollins | | 1 | Neil Dodson | Windsor Slough Eton & Hounslow | Bromley | 17 Aug 24 | |
| 78 | 50.32 | i | | 49.86 | | Hayden Christian | | 2 | | Guildford & Godalming | Lee Valley | 4 Feb 24 | |
| 52.26 | | | | | | | | | | Guildford | 14 Jul 24 | |
| 79 | 50.34 | i | | 50.12 | | Jack Lipman | | 3 | Gareth Davies | Oxford City | Lee Valley | 20 Jan 24 | |
| 50.88 | | | | | | | | | | Birmingham | 20 Jul 24 | |
| 79 | 50.34 | | | 50.34 | PB | Hal Rust-D'Eye | | 2 | | Reading AC | Birmingham | 20 Jul 24 | |
| 81 | 50.35 | | | 50.12i | | Luke Turner | | 2 | James Wright | Rugby & Northampton | Loughborough | 29 May 24 | |
| 82 | 50.36 | | | 49.70i | | Oliver Driscoll | | 1 | | Blackheath & Bromley | Sportcity | 1 Sep 24 | |
| 83 | 50.38 | | | 49.65 | | Carter Giddy | | 2 | | Mansfield | Derby | 12 May 24 | |
| 83 | 50.38 | | | 50.38 | PB | Harry Lazenby | | 1 | | Exeter | Exeter | 12 May 24 | |
| 83 | 50.38 | | | 50.38 | PB | Andy Crerar | | 1 | Ibrahim Turay | Reading AC | Eton | 17 Aug 24 | |
| 86 | 50.40 | | | 50.40 | PB | Zach Bridges | | 2 | | Woodford Green Essex Ladies | Woodford | 28 Apr 24 | |
| 87 | 50.4 | | | 51.29i/50.4 | PB | Jacob Winter | | 2 | Steve Oldham | Dudley & Stourbridge | Telford | 30 Jun 24 | |
| 52.30 | | | | | | | | | | Yeovil | 1 Apr 24 | |
| 88 | 50.42 | | | 50.12i | | James Haydock-Wilson | | 2 | | Windsor Slough Eton & Hounslow | Bromley | 19 Aug 24 | |
| 89 | 50.43 | | | 49.29 | | Ethan Curran | | 2 | Bruce Warren | Brighton Phoenix | Brighton | 31 Jul 24 | |
| 90 | 50.44 | | | 50.37 | | Oliver Blainey | | 2 | Nat Senior | Ilford | Chelmsford | 11 May 24 | |
| 91 | 50.49 | | | 50.15i | | Thomas Daly | | 1 | Iain Presnell | Tonbridge | Crawley | 30 Jun 24 | |
| 91 | 50.49 | i | | 50.49i | PB | Zac Williams | | 3 | Gary Sprake | City of Portsmouth | Topeka KS, USA | 7 Dec 24 | |
| 52.02 | | | | | | | | | | Portsmouth | 12 May 24 | |
| 93 | 50.51 | | | 50.51 | PB | Morrie Parker | | 2 | | Rugby & Northampton | Milton Keynes | 26 May 24 | |
| 94 | 50.54 | | | 50.54 | PB | Gregor Norster | | 2 | Alasdair Carpenter | City of Plymouth | Plymouth | 26 May 24 | |
| 94 | 50.54 | | | 50.54 | PB | Jacob Gosnall | | 1 | Michael Plummer | BRAT | Nuneaton | 8 Jun 24 | |
| 94 | 50.54 | | | 50.54 | PB | Jesse Katabazi | | 1 | | Victoria Park & Tower Hamlets | Mile End | 30 Jun 24 | |
| 97 | 50.56 | i | | 50.56i | PB | Adam Pearson | | 2 | Craig Pounder | City of York | Sheffield | 15 Dec 24 | |
| 51.12 | | | | | | | | | | York | 28 Apr 24 | |
| 98 | 50.60 | | | 49.31 | | Kevone Gallimore | | 2 | Earl Herbert | Windsor Slough Eton & Hounslow | Eton | 18 May 24 | |
| 99 | 50.6 | | | 53.42/50.6 | PB | Johar Ali | | 2 | Darren Toyn | Mansfield | Rotherham | 17 Aug 24 | |
| 100 | 50.61 | | | 50.61 | PB | Remy Weinbrecht | | 2 | Greg Richards | Highgate | Birmingham | 27 Jul 24 | |
| 101 | 50.63 | | | 50.63 | PB | Ethan Franklin | | 1 | Gladys Bird | Woodford Green Essex Ladies | Lee Valley | 6 Apr 24 | |
| 102 | 50.65 | i | | 50.65i | PB | Tom Street | | 3 | | Thames Valley | Sheffield | 24 Feb 24 | |
| 103 | 50.68 | | | 50.68 | PB | Oliver Connor | | 2 | | Camberley | Aldershot | 23 Jun 24 | |
| UK 100 TARGET: 50.70 |
| 104 | 50.7 | | | 51.05/50.7 | PB | Archie Street | | 2 | | Banbury | Kettering | 18 May 24 | |
| 105 | 50.73 | | | 50.73 | PB | Kyron-Bailee Burke | | 1 | | Croydon | Stratford (CT) | 8 Sep 24 | |
| 106 | 50.77 | | | 50.33i | | Benjamin Dewar | | 1 | Neil Dodson | Windsor Slough Eton & Hounslow | Eton | 1 Jun 24 | |
| 106 | 50.77 | | | 50.77 | PB | Samuel Sprostranov | | 1 | Vince Golding | Crawley | Crawley | 30 Jun 24 | |
| 106 | 50.77 | | | 50.77 | PB | Sanjay Saunders | | 1 | Jonathan Bell | Newham & Essex Beagles | Stevenage | 7 Jul 24 | |
| 109 | 50.80 | | | 50.80 | PB | Rhys Crawford | | 1 | Nichola Crawford | Aberdeen | Aberdeen | 15 May 24 | |
| 110 | 50.8 | | | 51.07/50.8 | PB | George Newton | | 1 | | Dacorum | Hemel Hempstead | 8 Jun 24 | |
| 51.07 | | | | | | | | | | Hemel Hempstead | 26 May 24 | |
| 110 | 50.8 | | | 54.59/50.8 | PB | Samuel Perry | | 1 | | Northern (Isle of Man) | Douglas | 6 Jul 24 | |
| 112 | 50.82 | | | 50.67 | | Luke Dronfield | | 3 | Marina Armstrong | Blackheath & Bromley | Bromley | 29 Apr 24 | |
| 113 | 50.83 | | | 50.82 | | Conrad Winter | | 3 | | City of Norwich | Gillingham | 14 Sep 24 | |
| 114 | 50.84 | | | 50.84 | PB | Cameron West | | 2 | Roy Freeman | Lincoln Wellington | York | 18 May 24 | |
| 115 | 50.90 | | | 50.90 | PB | Samuel Kalembo | | 1 | | Sutton & District | Carshalton | 17 Aug 24 | |
| 116 | 50.91 | | | 50.25 | | Daniel Nyong | | 1 | | Cambridge H | Ashford | 11 May 24 | |
| 117 | 50.95 | | | 50.95 | PB | Calum Murrow | | 2 | | Edinburgh AC | Grangemouth | 11 Aug 24 | |
| 118 | 51.00 | | | 51.00 | PB | Louis Starr | | 2 | | Rugby & Northampton | Corby | 12 May 24 | |
| 119 | 51.05 | | | 50.72 | | Sol Inglis | | 2 | | Thames Valley | Bracknell | 22 Jun 24 | |
| 120 | 51.06 | | | 50.31 | | Rayhan Mourtada | | 1 | John Blackie | Blackheath & Bromley | Bromley | 30 Jul 24 | |
| 121 | 51.07 | | | 51.05 | | Iwan Wilson | | 2 | Chris Franklin | Llanelli | Swansea | 12 May 24 | |
| 122 | 51.10 | | | 51.10 | PB | Travis Jack Scrivens | | 1 | Christopher Hazell | Nuneaton | Coventry | 17 Aug 24 | |
| 123 | 51.1 | | | 53.70/51.1 | PB | Lewis Smith | | 1 | Julie Smith | City of Stoke | Stoke | 18 May 24 | |
| 124 | 51.11 | | | 51.11 | PB | Jamie Dickson | | 2 | Dave Combe | Dundee Hawkhill | Grangemouth | 7 Jun 24 | |
| 125 | 51.12 | | | 51.12 | PB | Josh Redmond | | 2 | | Liverpool H | Liverpool | 26 May 24 | |
| 125 | 51.12 | | | 51.12 | PB | Oscar Shearing | | 1 | | Havering | Crawley | 30 Jun 24 | |
| 127 | 51.13 | | | 49.35 | | James Lawson | | 1 | Jeffrey Lawal-Balogun | Blackheath & Bromley | Bromley | 21 May 24 | |
| 128 | 51.15 | | | 51.09 | | Jon-Henry Robbie | | 1 | Lisa Waddon | Cardiff Archers | Birmingham | 8 May 24 | |
| 128 | 51.15 | | | 51.15 | PB | William Alexander | | 1 | Michael Dyer | Reading AC | Abingdon | 15 Jun 24 | |
| 130 | 51.17 | | | 49.41 | | Joe Stone | | 1 | Leslie Stone | Tonbridge | Gillingham | 1 Sep 24 | |
| 131 | 51.22 | | | 51.22 | PB | Jailan Sohna | | 1 | Catherine Muth | Birchfield H | Birmingham | 8 May 24 | |
| 131 | 51.22 | | | 51.22 | PB | Joseph Pointon | | 2 | Annie Pointon | Nuneaton | Nuneaton | 8 Sep 24 | |
| 131 | 51.22 | i | | 51.22i | PB | Alexander Bostwick | | 4 | Desmond Brear | Wakefield | Sheffield | 29 Dec 24 | |
| 134 | 51.27 | | | 51.27 | PB | Freddie Kugelmann | | 2 | Paul Smith | Burton | Nuneaton | 8 Jun 24 | |
| 134 | 51.27 | i | | 50.19i | | Levi Fagbohun | | 2 | Mark Fowler | Sheffield & Dearne | Sheffield | 29 Dec 24 | |
| 52.08 | | | | | | | | | | Cudworth | 11 May 24 | |
| 52.6 | | | | | | | | | | Doncaster | 8 Jun 24 | |
| 136 | 51.30 | | | 50.90 | | Joshua Patino | | 1 | | Liverpool H | Liverpool | 12 May 24 | |
| 136 | 51.30 | | | 51.30 | PB | Chinedu Ndukwu | | 2 | Jay Galley | Blackheath & Bromley | Bromley | 17 Sep 24 | |
| 138 | 51.32 | | | 51.32 | PB | Andreas Isaias | | 2 | Alasdair Carpenter | City of Plymouth | Plymouth | 26 May 24 | |
| 139 | 51.38 | i | | 51.38i | PB | Archie Sims | | 1 | Julie Benterman | Chelmsford | Lee Valley | 3 Mar 24 | |
| 139 | 51.38 | | | 51.32 | | Finley Mayoh | | 3 | Neil Canham | Trafford | Bedford | 3 Aug 24 | |
| 141 | 51.39 | | | 51.39 | PB | Archie Ellis | | 1 | Neil Dodson | Aldershot, Farnham & District | Woodford | 7 Jul 24 | |
| 142 | 51.4 | | | 51.92/51.4 | PB | James Read | | 2 | Mark Bleasdale | Liverpool Pembroke Sefton | Blackpool | 11 May 24 | |
| 51.92 | | | | | | | | | | Bury | 8 Sep 24 | |
| 142 | 51.4 | | | 52.04/51.4 | PB | Gabriel Mullen | | 1 | | St. Helens Sutton | Macclesfield | 18 May 24 | |
| 52.04 | | | | | | | | | | Liverpool | 17 Aug 24 | |
| 144 | 51.44 | | | 51.44 | PB | Jason Kamau | | 2 | | Newham & Essex Beagles | Chelmsford | 11 May 24 | |
| 144 | 51.44 | | | 51.44 | PB | Conor Adair | | 1 | | North Down | Belfast | 19 May 24 | |
| 146 | 51.45 | i | | 51.45i | PB | Dan Richardson | | 2 | Mike Corden | Sheffield & Dearne | Sheffield | 13 Jan 24 | |
| 53.17 | | | | | | | | | | Doncaster | 22 Jun 24 | |
| 53.7 | | | | | | | | | | Boston | 31 Aug 24 | |
| 147 | 51.50 | i | | 51.43 | | Marley Bigg | | 3 | Jon Bigg | Brighton Phoenix | Lee Valley | 4 Feb 24 | |
| 147 | 51.50 | | | 51.27 | | Caleb Coley | | 2 | Brian Darby | Coventry | Nuneaton | 29 Jun 24 | |
| 149 | 51.5 | | | 51.65i/51.5 | PB | Ethan Usherwood | | 1 | Julia Machin | Brighton & Hove | Brighton | 26 May 24 | |
| 51.82 | | | | | | | | | | Crawley | 30 Jun 24 | |
| 149 | 51.5 | | | 52.81/51.5 | PB | Elias Skaarup | | 1 | Barry Hearn | Marshall Milton Keynes | Milton Keynes | 21 Jul 24 | |
| 52.81 | | | | | | | | | | Leigh | 22 Jun 24 | |
| 151 | 51.51 | | | 50.96 | | Toby Bemand | | 2 | | Wimborne | Exeter | 15 Jun 24 | |
| 152 | 51.53 | | | 51.24 | | Oliver Robinson | | 1 | | East Down | Belfast | 19 May 24 | |
| 153 | 51.54 | | | 51.54 | PB | Gadary Barzey | | 1 | | Trafford | Stretford | 28 Apr 24 | |
| 154 | 51.56 | i | | 50.88 | | Luke Chipchase | | 2 | Joanne Walker | Sheffield & Dearne | Sheffield | 13 Jan 24 | |
| 52.9 | | | | | | | | | | Doncaster | 26 May 24 | |
| 53.11 | | | | | | | | | | Cudworth | 11 May 24 | |
| 155 | 51.58 | | | 51.24 | | Jack Gilbert | | 1 | Jade Harding | Chelmsford | Chelmsford | 11 May 24 | |
| 156 | 51.60 | | | 51.60 | PB | Jack Talbot | | 1 | Andrew Fraser | Wirral | Liverpool | 26 May 24 | |
| 157 | 51.62 | | | 51.62 | PB | Joseph Reeve | | 3 | Ken Harker | Richmond & Zetland | Middlesbrough | 8 Jun 24 | |
| 157 | 51.62 | | | 50.57 | | Max Lowrey | | 2 | Ian Grime | Salford H | Stretford | 8 Jun 24 | |
| 159 | 51.63 | | | 51.63 | PB | Tygan Davies | | 1 | | Carmarthen | Swansea | 10 Aug 24 | |
| 160 | 51.67 | | | 51.32 | | Euan O'Brien | | 2 | | Giffnock North | Grangemouth | 11 May 24 | |
| 160 | 51.67 | | | 51.67 | PB | Tobias Cheesbrough | | 1 | Brendon Byrne | City of Norwich | Norwich | 28 Aug 24 | |
| 162 | 51.68 | i | | 50.43 | | James Gill | | 2 | | Invicta East Kent | Sheffield | 10 Feb 24 | |
| 51.96 | | | | | | | | | | Woodford | 28 Apr 24 | |
| 163 | 51.73 | | | 51.73 | PB | Samuel Lawson | | 1 | Lee Dollard | Basildon | Woodford | 28 Apr 24 | |
| 163 | 51.73 | | | 49.93i | | Rhys Bennett | | 3 | Linda Mcgreavy | Leamington | Loughborough | 19 Jun 24 | |
| 165 | 51.74 | | | 50.96 | | James Harney | | 2 | Alexander Wort | East Cheshire | Birmingham | 27 Jul 24 | |
| 166 | 51.75 | i | | 51.48i | | Abdur-Ra'Uf Ibn Siddeeq | | 2 | John Henson | Sheffield & Dearne | Sheffield | 3 Feb 24 | |
| 167 | 51.78 | | | 50.89 | | Nathan Firla | | 2 | Roy Dickens | Blackheath & Bromley | Ashford | 11 May 24 | |
| 167 | 51.78 | | | 51.78 | PB | Joshua Robinson | | 1 | | Southend | Southend | 26 Aug 24 | |
| 169 | 51.8 | | | 51.05 | | Jake Nutsey | | 1 | | Leigh | Blackpool | 28 Apr 24 | |
| 169 | 51.8 | | | 51.14 | | Louie Selman | | 2 | Joe Caines | Royal Sutton Coldfield | Telford | 30 Jun 24 | |
| 52.24 | | | | | | | | | | Nuneaton | 11 May 24 | |
| 171 | 51.81 | | | 51.02i | | Cameron Scott | | 1 | Andrew Ferguson Snr | Banchory Stonehaven | Grangemouth | 11 Aug 24 | |
| 172 | 51.82 | | | 51.82 | PB | Arthur Milles T13/F13 | | 2 | Trevor Cummings | St. Mary's Richmond | Guildford | 26 May 24 | |
| 173 | 51.84 | | | 51.65 | | Daniel Lammas | | 1 | | Havering | Crawley | 30 Jun 24 | |
| 174 | 51.85 | | | 51.85 | PB | Tobias Shepherd | | 2 | | Unattached | Calviá, ESP | 20 Jan 24 | |
| 175 | 51.91 | | | 51.91 | PB | Luke Skates | | 1 | | Radley | Horspath | 11 May 24 | |
| 176 | 51.92 | | | 51.92 | PB | Aidan Walker | | 2 | | Banbury | Nuneaton | 15 Jun 24 | |
| 177 | 51.95 | | | 51.95 | PB | Finn Cross | | 1 | Lawson Cochrane | Willowfield | Belfast | 8 Jun 24 | |
| 178 | 51.97 | | | 51.97 | PB | Ben Carley | | 1 | | Rugby & Northampton | Nuneaton | 11 May 24 | |
| 179 | 52.0 | | | 49.93 | | Daniel Scott | | 1 | | Solihull & Small Heath | Wolverhampton | 28 Apr 24 | |
| 179 | 52.0 | | | 52.68/52.0 | PB | Jack Ring | | 2 | | Harlow AC | Stevenage | 15 Jun 24 | |
| 52.68 | | | | | | | | | | Woodford | 17 Aug 24 | |
| 181 | 52.03 | | | 52.03 | PB | George Christmas | | 1 | Richard Park | Cambridge & Coleridge | Cambridge | 11 May 24 | |
| 182 | 52.05 | | | 51.47 | | Zak Fearn | | 2 | Duncan Flockhart | Inverness | Dundee | 13 Jul 24 | |
| 182 | 52.05 | | | 52.05 | PB | Rehaan Husain | | 3 | | Southwark | Bromley | 30 Jul 24 | |
| 184 | 52.08 | | | 52.08 | PB | Indraneel Kandlagunta | | 3 | | Slough Junior | Southwark | 16 Mar 24 | |
| 184 | 52.08 | | | 51.44i | | Aidan Gaffey | | 1 | Jane Dixon | Shaftesbury Barnet | Hendon | 1 Sep 24 | |
| 186 | 52.10 | | | 50.94 | | Joshua Martin | | 2 | Paul Miller | Hercules Wimbledon | Wormwood Scrubs | 14 Jul 24 | |
| 187 | 52.1 | | | 52.68/52.1 | PB | Luke Fox | | 1 | Andrew Priest | Kidderminster & Stourport | Telford | 8 Jun 24 | |
| 52.68 | | | | | | | | | | Nuneaton | 15 Jun 24 | |
| 188 | 52.11 | | | 52.11 | PB | Henry Yelling | | 3 | John Clements | Brighton & Hove | Crawley | 30 Jun 24 | |
| 188 | 52.11 | | | 52.11 | PB | William Reid | | 3 | Sam Stanislaus | City of York | Birmingham | 27 Jul 24 | |
| 190 | 52.13 | | | 52.13 | PB | Reef Page | | 2 | Lewis Church | Tonbridge | Bracknell | 22 Jun 24 | |
| 191 | 52.14 | | | 52.14 | PB | Mark Constable | | 1 | | Blackheath & Bromley | Bromley | 10 Jun 24 | |
| 191 | 52.14 | | | 51.00i | | Jamie Smith | | 2 | | Glasgow Jaguars | Grangemouth | 26 Jun 24 | |
| 193 | 52.15 | | | 52.15/51.1 | PB | Israel Harrison | | 2 | Demetric Nelson | Bingley | Cleckheaton | 8 May 24 | |
| 194 | 52.17 | | | 52.17 | PB | Ryan Coltherd | | 2 | | Orkney | Inverness | 11 May 24 | |
| 194 | 52.17 | | | 52.17 | PB | Freddie Cushing | | 1 | Kevin Smith | Northampton | Corby | 12 May 24 | |
| 196 | 52.19 | | | 52.19 | PB | Ben Huntley | | 1 | | Yeovil | Yeovil | 11 May 24 | |
| 197 | 52.20 | | | 51.08i | | Muyiwa Oladokun | | 2 | | Newham & Essex Beagles | Stratford (CT) | 8 Sep 24 | |
| 198 | 52.2 | | | 52.2 | PB | Lomar Abuchi | | 3 | | Dorset Schs | Bournemouth | 8 Jun 24 | |
| 198 | 52.2 | | | 51.09i | | Alfie Nicholls | | 1 | Stuart Kerr | Rotherham | Rotherham | 17 Aug 24 | |
| 200 | 52.22 | | | 51.86 | | Oliver Palk | | 1 | | Blackburn | Liverpool | 26 May 24 | |
| 201 | 52.23 | | | 52.23 | PB | Marshall Stanislaus | | 2 | Godfrey Brown | Leeds City | York | 18 May 24 | |
| 201 | 52.23 | | | 52.04i | | Jacob Alexander | | 3 | Martin Branfoot | Chelmsford | Gillingham | 14 Jul 24 | |
| 203 | 52.25 | | | 52.14 | | Bobby Pitman | | 1 | | Stevenage & North Herts | Woodford | 17 Aug 24 | |
| 204 | 52.26 | | | 52.26 | PB | Isaac Brownlee-Jones | | 1 | Santino Dummett | Telford AC | Birmingham | 8 May 24 | |
| 204 | 52.26 | | | 52.26 | PB | Rhys Lloyd-Roberts | | 1 | | Pembrokeshire | Swansea | 10 Aug 24 | |
| 206 | 52.27 | | | 49.84i | | Andrew Peters | | 2 | | Dundee Hawkhill | Grangemouth | 24 Mar 24 | |
| 206 | 52.27 | | | 52.27 | PB | Neil Simpson | | 2 | | City of Lisburn | Belfast | 19 May 24 | |
| 206 | 52.27 | | | 52.27 | PB | Jan Malecki | | 2 | | Birchfield H | Birmingham | 22 Jun 24 | |
| 209 | 52.3 | | | 52.61/52.3 | PB | Henry Heathcote | | 3 | | Cannock & Stafford | Wolverhampton | 11 May 24 | |
| 53.31 | | | | | | | | | | Telford | 15 Sep 24 | |
| 209 | 52.3 | | | 54.03/52.3 | PB | Oscar Bailey | | 2 | | Basingstoke & Mid Hants | Southampton | 18 May 24 | |
| 209 | 52.3 | | | 52.3 | PB | Nicholas Thomas | | 1 | | Basingstoke & Mid Hants | Southampton | 18 May 24 | |
| 209 | 52.3 | | | 52.07i | | Louis How | | 2 | Paul Daynes | City of York | Doncaster | 26 May 24 | |
| 52.47 | | | | | | | | | | Cudworth | 11 May 24 | |
| 209 | 52.3 | | | 52.59/52.3 | PB | Benoit Courdavault | | 1 | | City of Portsmouth | Portsmouth | 8 Jun 24 | |
| 52.59 | | | | | | | | | | Portsmouth | 12 May 24 | |
| 214 | 52.32 | | | 51.02 | | Ross Duffin | | 1 | Ryan McAllister | Victoria Park City of Glasgow | Grangemouth | 11 May 24 | |
| 215 | 52.36 | | | 52.36 | PB | Kobi Blake | | 1 | | Croydon | Bromley | 19 Aug 24 | |
| 216 | 52.38 | | | 52.25i | | Andrew Mckechnie | | 2 | David Lothian | Glasgow Jaguars | Grangemouth | 5 May 24 | |
| 216 | 52.38 | | | 52.38 | PB | Tom Foden | | 1 | Vanessa Hammett | Kingston & Poly | Kingston | 11 May 24 | |
| 216 | 52.38 | | | 51.23 | | Thomas Brookes | | 2 | Brian Darby | Halesowen | Birmingham | 22 Jun 24 | |
| 219 | 52.39 | | | 52.14 | | Sam Amdor | | 3 | John Wildman | Highgate | Lee Valley | 2 Jun 24 | |
| 220 | 52.4 | | | 52.66/52.4 | PB | Thomas Bateman | | 1 | | Waverley AC | Lewes | 28 Apr 24 | |
| 52.66 | | | | | | | | | | Eton | 8 Jun 24 | |
| 220 | 52.4 | | | 54.23/52.4 | PB | Gerrit Theron | | 2 | Robert Hadfield | Kingston upon Hull | Doncaster | 26 May 24 | |
| 220 | 52.4 | | | 52.4 | PB | Nicholas Lee | | 1 | | Hertfordshire Schs | Hemel Hempstead | 8 Jun 24 | |
| 223 | 52.42 | | | 50.98 | | Corey Beechall | | 1 | Alexander Wort | Liverpool H | Macclesfield | 11 May 24 | |
| 224 | 52.46 | | | 52.46/52.3 | PB | Levi Heath | | 1 | | Derby | York | 18 May 24 | |
| 225 | 52.47 | | | 52.45 | | Stefan Chirita | | 1 | | Exeter | Exeter | 1 Sep 24 | |
| 226 | 52.48 | | | 52.32 | | Aharon Graham-Mulvaney | | 2 | Lorraine Mulvaney | Cardiff | Cardiff | 15 Jun 24 | |
| 226 | 52.48 | i | | 50.58 | | Finlay Cunningham | | 1 | | Livingston | Emirates Arena | 8 Dec 24 | |
| 228 | 52.49 | | | 52.49 | PB | Dante McNichol | | 2 | Iain Presnell | Tonbridge | Bromley | 10 Jun 24 | |
| 228 | 52.49 | | | 52.49 | PB | Rhys Brunton | | 1 | James Mole | North Shields Poly | Jarrow | 12 Jun 24 | |
| 230 | 52.50 | | | 52.50 | PB | Iolo Grant | | 2 | Mike Guest | Cardiff Archers | Yeovil | 27 Apr 24 | |
| 230 | 52.50 | | | 52.50 | PB | Archie Pinder | | 1 | Gary Howells | Chiltern | Stevenage | 28 Apr 24 | |
| 232 | 52.52 | | | 52.05 | | Adam Smith | | 1 | | St. Albans AC | Watford | 11 May 24 | |
| 233 | 52.60 | i | | 52.60i | PB | Ciaran McCarroll | | 1 | | Finn Valley | Abbotstown, IRL | 3 Mar 24 | |
| 53.44 | | | | | | | | | | Belfast | 11 May 24 | |
| 233 | 52.60 | | | 51.47 | | James Larkin | | 2 | Stephen Cottle | Torbay | Exeter | 28 Apr 24 | |
| 233 | 52.60 | | | 52.45 | | Euan Laird | | 1 | Anne Scott | Harmeny | Livingston | 14 Jun 24 | |
| 236 | 52.6 | | | 50.54 | | Will Panes | | 2 | | Epsom & Ewell | Walton | 18 May 24 | |
| 236 | 52.6 | | | 52.86/52.6 | PB | Oliver Morrison | | 1 | Steven Chalmers | Dunfermline Track & Field | Doncaster | 26 May 24 | |
| 52.86 | | | | | | | | | | Dunfermline | 3 May 24 | |
| 236 | 52.6 | | | 52.6 | PB | Shawn Bell | | 1 | | Hercules Wimbledon | Chelmsford | 15 Jun 24 | |
| 239 | 52.65 | | | 52.65 | PB | Isaac Jessop-Tranter | | 1 | Gary Howells | Chiltern | Eltham | 14 Jul 24 | |
| 240 | 52.66 | | | 52.66 | PB | Osuji Dozie | | 3 | | Leicestershire Schs | Loughborough | 20 Jun 24 | |
| 241 | 52.68 | | | 52.68 | PB | Archie Varley | | 1 | | Crewe & Nantwich | Macclesfield | 11 May 24 | |
| 242 | 52.69 | | | 52.69 | PB | Noah Scott | | 1 | Philip Gardiner | Gateshead | Hull | 30 Jun 24 | |
| 243 | 52.7 | | | 52.90/52.7 | PB | Thomas Bonniface | | 1 | | South London | Hastings | 18 May 24 | |
| 52.90 | | | | | | | | | | Crawley | 14 Jul 24 | |
| 243 | 52.7 | | | 52.7 | PB | Omari Koroma | | 1 | Paul Miller | Hercules Wimbledon | Southampton | 18 May 24 | |
| 243 | 52.7 | | | 52.01 | | Callum Featherstone | | 3 | | Medway & Maidstone | Brighton | 26 May 24 | |
| 243 | 52.7 | | | 52.7 | PB | Matthew Jones | | 1 | | West Cheshire | Leigh | 26 May 24 | |
| 247 | 52.72 | | | 52.72 | PB | Joseph Collini | | 2 | | Sheffield & Dearne | Sheffield | 1 May 24 | |
| 248 | 52.73 | | | 52.73 | PB | Ayub Zahid | | 2 | | Sutton & District | Bracknell | 22 Jun 24 | |
| 248 | 52.73 | | | 52.73 | PB | Sulaiman Ouiles | | 3 | Paul Harrison | Cheltenham | Warsaw, POL | 22 Jun 24 | |
| 248 | 52.73 | | | 52.73 | PB | Lochlann Steele | | 3 | | Inverclyde | Grangemouth | 30 Jun 24 | |
| 251 | 52.77 | i | | 52.77i | PB | Liam Daly | | 3 | | Inverness | Sheffield | 24 Feb 24 | |
| 53.99 | | | | | | | | | | Sportcity | 4 May 24 | |
| 252 | 52.79 | | | 52.79 | PB | Matei Frunza | | 1 | | Shaftesbury Barnet | Hemel Hempstead | 26 May 24 | |
| 253 | 52.80 | | | 52.80 | PB | Evan Cole | | 2 | | Swansea | Yeovil | 27 Apr 24 | |
| 254 | 52.8 | i | | 52.78 | | Matthew Barnes | | 1 | | Thames Valley | Lee Valley | 17 Mar 24 | |
| 52.81 | | | | | | | | | | Woking | 15 Jun 24 | |
| 254 | 52.8 | | | 53.40/52.8 | PB | Jack Hiatt | | 2 | Christopher Hazell | Nuneaton | Nuneaton | 2 Jun 24 | |
| 53.40 | | | | | | | | | | Coventry | 17 Aug 24 | |
| 256 | 52.82 | | | 51.79 | | Jack Adams | | 2 | | Cambridge H | Hemel Hempstead | 26 May 24 | |
| 256 | 52.82 | | | 52.72 | | Joseph Beresford | | 3 | Darrell Maynard | Swansea | Aberdare | 23 Jul 24 | |
| 258 | 52.84 | | | 52.84 | PB | Joseph Hayes | | 1 | | Highgate | Watford | 15 May 24 | |
| 259 | 52.85 | | | 52.36i | | Leon Harley | | 1 | | Arbroath & District | Inverness | 25 Aug 24 | |
| 260 | 52.86 | i | | 51.85i | | Owen Baron | | 1 | Carl Foster | Wigan & District | Sheffield | 15 Dec 24 | |
| 261 | 52.88 | | | 51.68 | | Cameron O'Grady | | 1 | | Notts | Rugby | 30 Jun 24 | |
| 261 | 52.88 | | | 51.16 | | Ben Brooker | | 3 | Shane Smith | Kettering | Kettering | 6 Aug 24 | |
| 263 | 52.89 | | | 52.89 | PB | Adam Whitlock | | 1 | | Invicta East Kent | Tonbridge | 2 Jul 24 | |
| 263 | 52.89 | | | 52.89 | PB | Jonathan Cripps | | 2 | Mark Goode | Notts | Rugby | 17 Aug 24 | |
| 263 | 52.89 | | | 52.89 | PB | Harrison Wright | | 1 | | Abingdon | Horspath | 11 Sep 24 | |
| 266 | 52.9 | | | 55.93/52.9 | PB | Noah Balchin | | 2 | | Stratford-upon-Avon | Leamington | 18 May 24 | |
| 267 | 52.91 | | | 52.91 | PB | Alexandro Ilioaie | | 2 | Ryan Freckleton | Rugby & Northampton | Lee Valley | 2 Jun 24 | |
| 267 | 52.91 | | | 52.91 | PB | Josef Ingham | | 1 | | Fife | Grangemouth | 30 Jun 24 | |
| 269 | 52.92 | | | 52.92 | PB | George Ward | | 2 | Andrew Hobdell | Herts Phoenix | Watford | 10 Jul 24 | |
| 270 | 52.93 | | | 52.39i | | Will Bryce | | 1 | Peter Venus | Tynedale | Jarrow | 24 Jul 24 | |
| 271 | 52.95 | | | 52.95 | PB | Kenton Jennings | | 3 | | Aldershot, Farnham & District | Portsmouth | 18 May 24 | |
| 272 | 52.96 | | | 52.96 | PB | Isaac Stevenson | | 1 | | Team East Lothian | Grangemouth | 5 May 24 | |
| 273 | 52.98 | | | 52.82 | | Jonah Miller | | 1 | | Basildon | Yeovil | 11 May 24 | |
| 274 | 53.0 | | | 53.0 | PB | Sam Downing | | 1 | | BRAT | Solihull | 4 Aug 24 | |
| 275 | 53.01 | | | 53.01 | PB | Ollie Francis | | 3 | Vince Golding | Crawley | Crawley | 30 Jun 24 | |
| 275 | 53.01 | | | 51.77 | | Jacob Woods | | 1 | Andy Tuttle | Newbury | Guildford | 14 Jul 24 | |
| 277 | 53.02 | | | 53.02/52.8 | PB | Leo Mills | | 2 | | City of Portsmouth | Portsmouth | 18 May 24 | |
| 278 | 53.03 | | | 53.03 | PB | Toks Akanbi-Mortimer | | 3 | Mike Guest | Cardiff | Horspath | 29 Jun 24 | |
| 279 | 53.07 | | | 53.07 | PB | Gerard McGrady | | 2 | | Blackheath & Bromley | Yeovil | 1 Apr 24 | |
| 280 | 53.08 | | | 53.08 | PB | Ethan Woodhead | | 2 | | Crawley | Brighton | 1 May 24 | |
| 281 | 53.09 | | | 53.09 | PB | Oluwafikayomi Awolope | | 2 | | Herne Hill | Carshalton | 27 Apr 24 | |
| 282 | 53.1 | i | | 49.90i | | Aaron Barrett-Mowatt | | 3 | | Victoria Park & Tower Hamlets | Lee Valley | 17 Mar 24 | |
| 282 | 53.1 | | | 51.32i | | Peter Gardner | | 1 | | Bury | Blackburn | 4 May 24 | |
| 53.52 | i | | | | | | | | | Sheffield | 13 Jan 24 | |
| 282 | 53.1 | | | 53.17/53.1 | PB | Cameron Featherstone | | 3 | | Medway & Maidstone | Brighton | 26 May 24 | |
| 282 | 53.1 | | | 54.01/53.1 | PB | Nathaniel Brady | | 1 | Craig Pounder | City of York | Doncaster | 26 May 24 | |
| 282 | 53.1 | | | 51.39 | | Calum Haycock | | 3 | Shaun Ainge | Cannock & Stafford | Tamworth | 7 Sep 24 | |
| 287 | 53.12 | | | 53.12/52.8 | PB | Jack Offord | | 2 | Stuart Storey | Herts Phoenix | Lee Valley | 6 Apr 24 | |
| 287 | 53.12 | | | 51.94/51.8 | | Tajhjani Brooks | | 2 | | Charnwood | Milton Keynes | 26 May 24 | |
| 289 | 53.13 | | | 53.13 | PB | Donnie Carpenter | | 1 | | Peterborough & Nene Valley | Peterborough | 15 Jun 24 | |
| 289 | 53.13 | | | 53.13/52.7 | PB | Alex Leadbeater | | 2 | John Smith | Sale Harriers Manchester | Bury | 8 Sep 24 | |
| 291 | 53.16 | | | 52.92 | | Archie Winney | | 2 | Tony Benton | Havering | Hornchurch | 7 Apr 24 | |
| 291 | 53.16 | | | 53.16 | PB | Sam Wright | | 1 | Simon Hemmings | Chelmsford | Yeovil | 27 Apr 24 | |
| 293 | 53.18 | i | | 53.18i | PB | Rueben Spurdens | | 1 | Michael Utting | City of Norwich | Lee Valley | 20 Jan 24 | |
| 53.44 | | | | | | | | | | Norwich | 3 Apr 24 | |
| 293 | 53.18 | | | 53.18 | PB | Sam Yates | | 3 | James Thie | Nuneaton | Nuneaton | 15 Jun 24 | |
| 295 | 53.20 | | | 53.20 | PB | Alex Dack | | 1 | | Invicta East Kent | Bromley | 30 Jul 24 | |
| 296 | 53.2 | | | 51.52 | | Ellis Cameron | | 2 | Paul Blakey | Derby | Stoke | 8 Jun 24 | |
| 296 | 53.2 | | | 53.23/52.4 | | Nathan Davis | | 1 | Gordon Addison | Luton | Luton | 15 Jun 24 | |
| 53.23 | | | | | | | | | | Bedford | 18 May 24 | |
| 296 | 53.2 | | | 53.82/53.2 | PB | Finley Holland | | 1 | | Colchester & Tendring | Bury St. Edmunds | 23 Jun 24 | |
| 53.82 | | | | | | | | | | Dartford | 17 Aug 24 | |
| 296 | 53.2 | | | 53.84/53.2 | PB | Thomas O'Neill | | 1 | | West Norfolk | Colchester | 17 Aug 24 | |
| 53.84 | | | | | | | | | | Kettering | 6 Aug 24 | |
| 300 | 53.22 | i | | 51.88/51.1 | | Mikhail Filippov | | 2 | | St. Albans AC | Lee Valley | 20 Jan 24 | |
| 53.34 | | | | | | | | | | Peterborough | 15 Jun 24 | |
| 300 | 53.22 | | | 53.22 | PB | Ibrahim Halil | | 3 | | Blackheath & Bromley | Birmingham | 27 Jul 24 | |
| 302 | 53.23 | | | 53.23 | PB | Ardonia Katuruza | | 3 | | Rugby & Northampton | Rugby | 30 Jun 24 | |
| 303 | 53.29 | | | 53.29 | PB | Matthew Knight | | 1 | | North Down | Belfast | 1 Aug 24 | |
| 303 | 53.29 | | | 53.29 | PB | Hamza Silman | | 2 | | Newham & Essex Beagles | Abu Dhabi, UAE | 27 Oct 24 | |
| 305 | 53.3 | | | 53.3 | PB | Thomas Reynolds | | 1 | Nichola Crawford | Aberdeen | Perth | 27 Apr 24 | |
| 305 | 53.3 | | | 53.42/53.3 | PB | William Fleming | | 2 | Paul Tasker | Tamworth | Stoke | 26 May 24 | |
| 307 | 53.31 | i | | 52.63/52.4 | | Edan Petrie | | 2 | Martin Cook | City of York | Sheffield | 3 Feb 24 | |
| 307 | 53.31 | | | 53.31 | PB | Brodie Nixon | | 1 | Bob Douglas | Glasgow Jaguars | Livingston | 14 Jun 24 | |
| 307 | 53.31 | | | 53.31 | PB | Blake Williams | | 2 | Simon Williams | Newquay & Par | Exeter | 30 Jun 24 | |
| 310 | 53.36 | | | 53.36 | PB | Kelvin Amankwaah | | 1 | | Thurrock | Mile End | 14 Jul 24 | |
| 311 | 53.37 | | | 53.37 | PB | Zeb Baker | | 1 | Daniel Wallis | Guildford & Godalming | Aldershot | 17 Aug 24 | |
| 312 | 53.38 | | | 53.38 | PB | James Walton | | 1 | | Trafford | Bury | 18 Aug 24 | |
| 313 | 53.4 | i | | 54.19/53.4i | PB | Jaden Aulis | | 1 | | Shaftesbury Barnet | Lee Valley | 17 Mar 24 | |
| 313 | 53.4 | | | 54.21/53.4 | PB | Jack Jones | | 1 | | City of Stoke | Wolverhampton | 11 May 24 | |
| 313 | 53.4 | | | 54.43/53.4 | PB | Felix Palmer | | 2 | | Chiltern | Horspath | 8 Jun 24 | |
| 313 | 53.4 | | | 53.4 | PB | Raphael Grant | | 1 | Christine Taylor | Epsom & Ewell | Kingston | 15 Jun 24 | |
| 313 | 53.4 | | | 53.83/53.4 | PB | Evan Williams | | 1 | | Liverpool Pembroke Sefton | Bury | 29 Jun 24 | |
| 53.83 | | | | | | | | | | Bury | 8 Sep 24 | |
| 318 | 53.42 | | | 53.42 | PB | Tom Coverley | | 1 | | Rushcliffe | Loughborough | 7 Aug 24 | |
| 319 | 53.43 | i | | 53.43i/53.3 | PB | John Nickless | | 2 | Alan Hewson | Chiltern | Lee Valley | 1 Jan 24 | |
| 319 | 53.43 | | | 51.49i | | James Nixon | | 2 | | Enniskillen RC | Belfast | 1 Aug 24 | |
| 319 | 53.43 | | | 52.86i | | Euan Monro | | 1 | | Loughview AC | Belfast | 22 Aug 24 | |
| 322 | 53.44 | | | 53.44 | PB | William Wassmer | | 1 | | Great Yarmouth | Stratford (CT) | 8 Sep 24 | |
| 323 | 53.45 | | | 53.45 | PB | Matthew Monachello | | 1 | | Kilmarnock | Crownpoint | 27 Apr 24 | |
| 324 | 53.46 | | | 53.46 | PB | Charles Prestwich | | 1 | Chris McGeorge | Notts | Loughborough | 12 Jun 24 | |
| 325 | 53.47 | | | 53.47 | PB | Tom Owen | | 1 | Steve Oldham | Dudley & Stourbridge | Stourport | 11 May 24 | |
| 325 | 53.47 | | | 52.89 | | Harrison White | | 3 | | Invicta East Kent | Tonbridge | 2 Jul 24 | |
| 327 | 53.5 | | | 53.5 | PB | George Saint | | 1 | | London Heathside | Finsbury Park | 4 Jun 24 | |
| 328 | 53.53 | | | 53.53 | PB | Jake Etherington | | 3 | Richard Jackson | Woking | Rock Island IL, USA | 20 Apr 24 | |
| 329 | 53.55 | | | 53.55 | PB | Joseph Jones | | 2 | | Rugby & Northampton | Corby | 12 May 24 | |
| 330 | 53.56 | | | 53.56 | PB | Cameron McLean | | 1 | | Yeovil | Yeovil | 7 Jul 24 | |
| 331 | 53.57 | | | 53.57 | PB | Oscar Wade | | 2 | | Taunton | Yeovil | 8 Jun 24 | |
| 332 | 53.58 | | | 53.58 | PB | Charlie Arnold | | 2 | Rafer Joseph | Basingstoke & Mid Hants | Birmingham | 27 Jul 24 | |
| 332 | 53.58 | | | 53.58 | PB | Fin Thurman | | 2 | Clive Marsh | Newquay & Par | Exeter | 1 Sep 24 | |
| 334 | 53.6 | | | 53.6 | PB | Finley Davies | | 3 | | West Suffolk | Bury St. Edmunds | 23 Jun 24 | |
| 335 | 53.63 | | | 53.60 | | Leo Chalamanda | | 1 | | Strathearn | Stirling | 18 May 24 | |
| 336 | 53.64 | | | 52.21 | | Joshua Aboagye | | 3 | | Medway & Maidstone | Lee Valley | 6 Apr 24 | |
| 337 | 53.66 | | | 52.75 | | Thomas Brennan | | 1 | | North Uist | Grangemouth | 11 Aug 24 | |
| 338 | 53.67 | | | 53.67 | PB | George Wallace | | 1 | Michael Thompson | Sheffield & Dearne | Sheffield | 21 Aug 24 | |
| 339 | 53.70 | | | 53.70 | PB | Henry Cornish | | 1 | Mark Pauley | Poole AC | Exeter | 5 May 24 | |
| 339 | 53.70 | | | 53.70 | PB | Ethan Cook | | 2 | Tony Hadley | Birchfield H | Nuneaton | 11 May 24 | |
| 341 | 53.7 | | | 53.7 | PB | Oliver Crisp | | 3 | | Colchester H | Kings Lynn | 15 Jun 24 | |
| 341 | 53.7 | | | 53.77/53.7 | PB | Adam Bakler-Kugler | | 1 | Richard Bullis | Basildon | Basildon | 14 Jul 24 | |
| 53.77 | | | | | | | | | | Horspath | 7 Sep 24 | |
| 341 | 53.7 | | | 58.63/53.7 | PB | Bobo Williams | | 1 | | Cambridge & Coleridge | Cambridge | 14 Jul 24 | |
| 341 | 53.7 | | | 52.63 | | Thomas Monks | | 2 | | Blackburn | Ellesmere Port | 17 Aug 24 | |
| 345 | 53.73 | | | 53.73 | PB | Charlie Burgess | | 2 | | Havering | Hornchurch | 15 Sep 24 | |
| 346 | 53.74 | | | 53.45i | | Dima Graham | | 1 | | Tweed, Leader, Jed Track | Crownpoint | 25 May 24 | |
| 347 | 53.77 | | | 53.77 | PB | Finley Halford | | 1 | | Taunton | Yeovil | 11 May 24 | |
| 348 | 53.78 | i | | 53.49i | | Alex Burns | | 1 | | Airdrie Harriers | Emirates Arena | 8 Dec 24 | |
| 349 | 53.8 | | | 53.8 | PB | Edward Matthews | | 1 | | Havering | Brighton | 26 May 24 | |
| 349 | 53.8 | | | 54.75/53.8 | PB | Corey Middleton | | 1 | Carl Foster | Preston | Litherland | 7 Sep 24 | |
| 351 | 53.81 | i | | 52.94 | | Ben Richards | | 2 | | Woodford Green Essex Ladies | Lee Valley | 3 Mar 24 | |
| 352 | 53.83 | | | 53.83 | PB | Samuel Dallas | | 1 | Tania Williams | Deeside AAC | Bangor | 8 Sep 24 | |
| 353 | 53.84 | | | 53.84 | PB | Daniel Constable | | 1 | | North Down | Belfast | 26 May 24 | |
| 354 | 53.85 | | | 53.85 | PB | Drew Woodley | | 1 | Everton Caines | Solihull & Small Heath | Nuneaton | 15 Jun 24 | |
| 355 | 53.86 | | | 53.86 | PB | Cameron Robertson | | 1 | | Nithsdale | Grangemouth | 27 Apr 24 | |
| 355 | 53.86 | | | 53.86 | PB | Josiah Williams-Ollivierre | | 2 | | Shaftesbury Barnet | Hemel Hempstead | 26 May 24 | |
| 357 | 53.87 | | | 53.87 | PB | Ethan Isles | | 2 | Francis Marsh | North Down | Belfast | 26 May 24 | |
| 358 | 53.89 | | | 53.89 | PB | Robbie Stevenson | | 1 | Bernard Marley | Victoria Park City of Glasgow | Crownpoint | 3 Aug 24 | |
| 359 | 53.92 | | | 53.92 | PB | Nicolas Ackermann | | 3 | | Guernsey | St. Peter Port | 28 Apr 24 | |
| 360 | 53.93 | | | 53.93 | PB | Callum Lill | | 1 | | Basildon | Basildon | 26 May 24 | |
| 360 | 53.93 | | | 53.93 | PB | Petter Tye | | 2 | Eoghan MacNamara | Lasswade | Livingston | 6 Sep 24 | |
| 362 | 53.95 | | | 50.95 | | Harris Morrison | | 2 | | Glasgow Jaguars | Grangemouth | 20 Apr 24 | |
| 362 | 53.95 | | | 53.95 | PB | Henry Dover | | 2 | | Shaftesbury Barnet | Chelmsford | 1 Jun 24 | |
| 364 | 53.96 | | | 53.96 | PB | Jacob Mullerworth | | 1 | | Fleet & Crookham | Portsmouth | 12 May 24 | |
| 365 | 53.98 | i | | 53.42 | | Saul Thompson | | 1 | Ian Neely | North Belfast | Athlone, IRL | 14 Jan 24 | |
| 366 | 53.99 | | | 53.63 | | Max Lorke | | 1 | | South London | Carshalton | 27 Apr 24 | |
| 367 | 54.00 | | | 54.00 | PB | Ollie Spencer | | 1 | | Cornwall AC | Exeter | 5 May 24 | |
| 368 | 54.0 | | | 53.00/52.8 | | Corey Tatum | | 2 | Jayesh Dave | Amber Valley & Erewash | Tamworth | 28 Apr 24 | |
| 368 | 54.0 | | | 54.79/54.0 | PB | Harry Richards | | 2 | Bernard Wilkins | Abingdon | Banbury | 14 Jul 24 | |
| 368 | 54.0 | | | 54.0 | PB | Dominic Dunwell | | 1 | | Northern (Isle of Man) | Wrexham | 14 Jul 24 | |
| 46.97 | | | 46.54i | | Conor Kelly | | 1 | Paul Miller | Hercules Wimbledon | Banská Bystrica, SVK | 20 Jul 24 | |
| 47.97 | | | 47.97 | PB | Adam Courtney | | 3 | Dougie Thom | Ballymena & Antrim | Dublin (S), IRL | 4 May 24 | |
| 48.62 | | | 48.62 | PB | Tayedza Jaravaza | | 3 | | Northampton | Loughborough | 29 May 24 | |
| 49.16 | | | 48.45 | | Numeiri Saeed | | 3 | | Rugby & Northampton | Sportcity | 1 Sep 24 | |
| 49.22 | | | 49.22 | PB | Cheyne West | | 1 | Julie Benterman | Medway & Maidstone | Eton | 15 Jun 24 | |
| 49.32 | | | 49.32 | PB | Keeran Sriskandarajah | | 1 | James McDonald | Herne Hill | Kingston | 11 May 24 | |
| 49.74 | | | 49.74 | PB | Antoine Roquette | | 2 | | Dundrum South Dublin | Belfast | 11 May 24 | |
| 51.03 | | | 50.84i | | Mandipa-ishe Mamvura | | 3 | Julie Alexander | Team Bath | Sportcity | 1 Sep 24 | |
| 51.87 | | | 51.87 | PB | Zhihe Zhang | | 2 | David Sadkin | Enfield & Haringey | Eton | 8 Jun 24 | |
| 52.61 | i | | 52.56i | | Ethan Dewhirst | | 1 | | Tír Conaill | Abbotstown, IRL | 3 Mar 24 | |