400 m M | M | 400 | M400 | Heat A | 2025-08-06 | 19:21:00 | 19:35:33 | | | | | | | |
| | | | | | | | | | | | | | |
1 | 6 | 1 | 9 | HOLDER Reece | 2002-08-20 | AUSTRALIA | 44.53/24 | 44.54 | 44.78 | | 0.197 | | | 1 |
2 | 5 | 1 | 85 | POWELL Jevaughn | 2000-11-19 | JAMAICA | 44.54/24 | 44.90 | 45.63 | | 0.157 | | | 2 |
3 | 8 | 1 | 151 | NDIAYE Abdou Aziz | 2002-01-08 | SENEGAL | 45.24/25 | 45.24 | 45.64 | | 0.298 | | | 3 |
4 | 7 | 1 | 114 | DUSZYŃSKI Kajetan | 1995-05-12 | POLAND | 44.92/21 | 45.48 | 45.70 | | 0.194 | | | 4 |
5 | 4 | 1 | 81 | KENNEDY Delano | 2004-02-03 | JAMAICA | 44.91/25 | 44.91 | 45.90 | | 0.237 | | | 6 |
6 | 3 | 1 | 158 | ADOLI Haron | 1994-10-08 | UGANDA | 45.21/25 | 45.21 | 46.54 | | 0.235 | | | 10 |
7 | 2 | 1 | 92 | TANABE Sho | 2005-09-30 | JAPAN | 45.39/25 | 45.39 | 46.88 | | 0.143 | | | 11 |