| Event | Semi | Status | |
|---|---|---|---|
| Women 400 M Xfinity Open (Semis) | 1| | ||
| Friday 8:29 PM |
| Record | Athlete | Date | ||
|---|---|---|---|---|
| WR | World | Marita Koch - GDR | 47.60 | 10/6/1985 |
| AR | American | Sanya Richards - Nike | 48.70 | 9/17/2006 |
| MR | Meet | Sanya Richards - Nike | 49.27 | 6/24/2006 |
| FR | Facility | Shaunae Miller-Uibo - BAH | 49.08 | 4/24/2021 |
| WQ | World Champ Q | 51.00 |
| Pl | Ln | Athlete | Time | ||
|---|---|---|---|---|---|
| 1 | 4 | Sydney MCLAUGHLIN-LEVRONE New Balance |
49.60 Q | 0.226 | |
| 2 | 6 | Rosey EFFIONG Arkansas |
51.00 Q | 0.205 | |
| 3 | 5 | Lynna IRBY-JACKSON adidas |
51.19 Q | 0.189 | |
| 4 | 8 | Quanera HAYES Nike |
51.58 SB | 0.251 | |
| 5 | 1 | Maya SINGLETARY Charlotte |
52.52 | 0.362 | |
| 6 | 7 | Courtney OKOLO Unattached |
52.78 | 0.249 | |
| 7 | 2 | Shae ANDERSON Unattached |
52.85 | 0.268 | |
| 8 | 3 | Paris PEOPLES Arkansas |
53.59 | 0.223 |