School Games 2021
400m Boys ; Official result since 11:18
GR Ben Sturgess 47.99 2008
| Rank | Lane | ID | Name | SB | Team | Cat | Result | Info | Video |
| 1 | 7 | 47 | Calvin Smith | LOND | 50.07 | ||||
| 2 | 8 | 91 | Calum Mackenzie | TOKY | 50.23 | ||||
| 3 | 5 | 25 | Rowan Pearson | BEIJ | 51.87 | ||||
| 4 | 3 | 69 | Ben Sinclair | RIO | 52.13 | ||||
| 5 | 4 | 113 | Matthew Marven | PARI | 52.77 | ||||
| 6 | 135 | Lewis Thomson | LOS | DNS |