| Event | Semi | Status | |
|---|---|---|---|
| Women 400 M Nike Open (Semis) | 1|2 | ||
| Friday 8:25 PM |
| Record | Athlete | Date | ||
|---|---|---|---|---|
| MR | Meet | Sanya Richards - Nike | 49.27 | 6/24/2006 |
| FR | Hayward | Shaunae Miller-Uibo - BAH | 49.08 | 4/24/2021 |
| AR | American | Sanya Richards - Nike | 48.70 | 9/17/2006 |
| WR | World | Marita Koch - GDR | 47.60 | 10/6/1985 |
| WQ | World Qualifier | 51.35 |
| Pl | Ln | Athlete | Time | ||
|---|---|---|---|---|---|
| 1 | 7 | Talitha DIGGS Florida |
50.88 Q | 0.175 | |
| 2 | 5 | Kennedy SIMON Texas |
51.11 Q | 0.226 | |
| 3 | 4 | Jaide STEPTER Unattached |
51.26 Q | 0.221 | |
| 4 | 6 | Allyson FELIX Athleta |
51.32 | 0.214 | |
| 5 | 3 | Kaylin WHITNEY Nike |
51.42 | 0.295 | |
| 6 | 8 | Jermaisha ARNOLD Coastal Carolina |
51.78 | 0.275 | |
| 7 | 2 | Delecia MCDUFFIE N. Carolina A&T |
51.82 | 0.297 | |
| 8 | 9 | Shae ANDERSON U C L A |
52.14 | 0.268 |