| Event | Semi | Status | |
|---|---|---|---|
| Men 400 M Hurdles Open (Semis) | 1|2 | ||
| Saturday 1:22 PM |
| Record | Athlete | Date | ||
|---|---|---|---|---|
| MR | Meet | Rai Benjamin - Nike | 46.83 | 6/26/2021 |
| FR | Hayward | Rai Benjamin - USA | 46.83 | 6/26/2021 |
| AR | American | Rai Benjamin - Nike | 46.17 | 8/3/2021 |
| WR | World | Karsten Warholm - NOR | 45.94 | 8/3/2021 |
| WQ | World Qualifier | 48.90 |
| Pl | Ln | Athlete | Time | ||
|---|---|---|---|---|---|
| 1 | 5 | Rai BENJAMIN Nike |
47.93 Q | 0.198 | |
| 2 | 6 | Trevor BASSITT Unattached |
48.38 Q PB | 0.212 | |
| 3 | 8 | Quincy DOWNING Tracksmith |
48.86 Q SB | 0.157 | |
| 4 | 4 | Aldrich BAILEY Unattached |
49.35 | 0.219 | |
| 5 | 7 | David KENDZIERA Unattached |
49.58 | 0.230 | |
| 6 | 2 | Cass ELLIOTT Washington |
50.68 | 0.214 | |
| 7 | 9 | Quivell JORDAN-BACOT Houston |
50.83 | 0.189 | |
| 8 | 3 | Christopher ROBINSON South Plains |
50.96 | 0.236 |