| Event | Status |
|---|---|
| Women 400 M (Prelims) | |
| Friday 3:21 PM | Total Races: |
| Record | Athlete | Date | ||
|---|---|---|---|---|
| WR | World | Jarmila Kratochvilova - TCH | 49.59 | 3/7/1982 |
| NR | American | Kendall Ellis - USC | 50.34 | 3/10/2018 |
| MR | Meet | Sanya Richards-Ross - NIKE | 50.71 | 2/26/2012 |
| FR | Facility | Phyllis Francis - Oregon | 50.46 | 3/15/2015 |
| Pl | Athlete | Time | Heat (pl) | React | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Naasha ROBINSON Unattached | 52.92 | Q | 2 (1) | 0.199 | |||||
| 2 | Brittany AVENI Unattached | 53.38 | Q | 2 (2) | 0.238 | SB | ||||
| 3 | Anna HALL adidas | 53.66 | Q | 1 (1) | 0.224 | |||||
| 4 | Erin DOWD Unattached | 53.98 | q | 2 (3) | 0.194 | PB | ||||
| 5 | Bianca STUBLER Tracksmith | 54.29 | Q | 1 (2) | 0.187 | |||||
| 6 | Simone WILSON Unattached | 55.69 | q | 1 (3) | 0.249 | PB | ||||
| 7 | Alexia DEHAVEN Unattached | 57.41 | 1 (4) | 0.183 |