| Event | Meeting | Venue | Date | Alexander Thomson | Shaun Burrows | Ross Paterson | Dylan Harris | Henry Ackroyd | Ben Foulston | Toby Markham | Luke Parry | Markus Facey-Dell |
| 400 | Sainsbury's School Games | Sportcity | 4 Sep 15 | | | 55.72 | 1rA | 59.27 | 3rA | | | | | | | | | | | | |
| 400 | SDS National Junior Championships | Grangemouth | 1 Jun 16 | 57.99 | 1r1 | | | 58.18 | 2r1 | | | | | | | | | | | | |
| 400 | Livingston Open Meeting | Livingston | 19 Apr 17 | 56.97 | 6r2 | | | 56.17 | 5r2 | | | | | | | | | | | | |
| 400 | Grangemouth Graded Open | Grangemouth | 3 May 17 | 56.36 | 4r2 | | | 56.91 | 5r2 | | | | | | | | | | | | |
| 400 | Livingston Open Meeting | Livingston | 19 Jul 17 | 55.85 | 3r2 | | | 56.13 | 4r2 | | | | | | | | | | | | |
| 400 | Surrey & Kingston & Poly Disability & Throws Open | Kingston | 7 Apr 18 | | | | | | | 58.92 | 4r2 | | | | | | | 66.23 | 5r2 | | |
| 400 | BWAA Grand Prix | Stoke Mandeville | 2 Jun 18 | | | | | | | | | | | 60.61 | 1 | | | 62.44 | 2 | | |
| 400 | Northern Athletics U20 / Senior Championships | Sportcity | 9 Jun 18 | | | | | 56.32 | 1rP | | | 59.53 | 2rP | | | | | | | | |
| 400 | CAU Inter-County Championships (Inc England Athletics Senior Championships) | Sportcity | 28 Jul 18 | 56.03 | 4rP1 | | | | | | | 63.25 | 6rP1 | 59.32 | 5rP1 | | | | | | |
| 400 | CAU Inter-County Championships (Inc England Athletics Senior Championships) | Sportcity | 28 Jul 18 | | | | | | | 58.51 | 4rP2 | | | | | | | 62.90 | 6rP2 | | |
| 400 | Surrey Disability Championships & Kingston & Polytechnic Open | Kingston | 6 Apr 19 | | | | | | | 59.08 | 4 | | | | | | | 62.74 | 5 | | |
| 400 | England Athletics U20 / Senior Combined Events Championships | Bedford | 26 May 19 | | | | | | | 57.50 | 5rP | 57.44 | 4rP | | | | | 61.29 | 7rP | | |
| 400 | Northern Athletics U20 / Senior Championships | Sportcity | 1 Jun 19 | 57.69 | 2rP | | | | | 56.97 | 1rP | 58.28 | 3rP | | | | | | | | |
| 400 | CAU Inter-County Championships (Inc England Athletics Senior Championships) | Sportcity | 27 Jul 19 | DQ | -rP1 | | | | | | | | | 57.95 | 4rP1 | | | | | | |
| 400 | CAU Inter-County Championships (Inc England Athletics Senior Championships) | Sportcity | 27 Jul 19 | | | 54.65 | 3rP2 | | | 57.48 | 5rP2 | 59.87 | 6rP2 | | | | | | | | |
| 400 | British Athletics Parallel Success & Open | Newham | 18 Aug 19 | | | | | | | 57.94 | 3r5 | | | | | | | 62.29 | 4r5 | | |
| 400 | England Athletics U15 / U17 Championships | Bedford | 31 Aug 19 | 54.91 | 3rP | | | | | | | 60.21 | 5rP | | | | | | | | |
| 400 | Muller Para-Track Grand Prix | Kirkby | 14 Sep 19 | | | 55.7 | 1 | | | | | 60.2 | 2 | | | | | | | | |
| 400 | Coventry Spring Meet | Coventry | 24 Apr 21 | 56.11 | 4r2 | 55.93 | 3r2 | 56.13 | 5r2 | | | | | | | 62.53 | 6r2 | | | | |
| 400 | European Para Championships | Bydgoszcz, POL | 2 Jun 21 | 54.46 | 3rT38 | 53.02 | 2rT38 | 55.60 | 4rT38 | | | | | | | | | | | | |
| 400 | The Müller British Grand Prix | Gateshead | 13 Jul 21 | 54.53 | 5rP | | | 54.77 | 6rP | 57.09 | 7rP | | | | | | | | | | |
| 400 | England Athletics Senior Championships, including Disability Championships | Bedford | 17 Jul 21 | 55.08 | 5rP1 | 54.70 | 4rP1 | | | | | | | | | | | | | | |
| 400 | England Athletics Senior Championships, including Disability Championships | Bedford | 17 Jul 21 | | | | | | | 57.68 | 3rP2 | | | | | | | 62.82 | 4rP2 | | |
| 400 | Coventry Spring Meet | Coventry | 23 Apr 22 | | | 57.55 | 5 | | | | | | | | | 61.59 | 2 | | | | |