| Event | Heat | Status | |
|---|---|---|---|
| Women 400 M Nike Open (Prelims) | 3| | ||
| Thursday 7:26 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 | 6 | Rosaline EFFIONG Arkansas |
51.17 Q | 0.193 | |
| 2 | 4 | Talitha DIGGS Florida |
51.32 Q | 0.177 | |
| 3 | 9 | Kaylin WHITNEY Nike |
51.36 Q SB | 0.256 | |
| 4 | 7 | Shae ANDERSON U C L A |
51.51 | 0.228 | |
| 5 | 8 | Taiya SHELBY Vanderbilt |
51.65 | 0.208 | |
| 6 | 5 | Delecia MCDUFFIE N. Carolina A&T |
51.87 | 0.213 | |
| 7 | 3 | Shakima WIMBLEY adidas |
53.06 | 0.240 |