400m Men, Heat:1 of 2 ; Official result since 19:33
| Rank | Lane | ID | Name | SB | Team | Cat | Result | Info | Video |
| 1 | 6 | 172 | Yousif Rabah | 45.41 | England | Sen | 45.48 | ||
| 2 | 4 | 154 | Spratling Brycen | 45.09 | United States | Sen | 46.06 | ||
| 3 | 3 | 160 | Buck Richard | 46.09 | England | Sen | 46.82 | ||
| 4 | 7 | 161 | Dunn Jarryd | 46.18 | England | Sen | 46.86 | ||
| 5 | 5 | 152 | Mitchell Manteo | 45.09 | United States | Sen | 47.09 | ||
| 6 | 8 | 163 | Murphy Brian | 47.01 | Ireland | Sen | 47.64 | ||
| 7 | 2 | 157 | Heriot Blake | 46.38 | United States | Sen | 47.70 | ||
| 8 | 1 | 167 | Lynch Craig | 47.77 | Ireland | Sen | 47.75 |