|
| Record | Athlete/Team | Time | Date |
|---|---|---|---|
| American | Sanya Richards - US World Cup Team | 48.70 | 9/17/2006 |
| College Best | Monique Henderson - UCLA | 50.10 | 6/11/2005 |
| NCAA Meet | Monique Henderson - UCLA | 50.10 | 6/11/2005 |
| Place | Athlete | Affiliation | Time | Wind | Heat (Pl) | Result (split) | |
|---|---|---|---|---|---|---|---|
| 1 | Ashley Spencer | ILL | 50.28 | 1 (1) | Heat data | ||
| 2 | Shaunae Miller | UGA | 50.70 | 1 (2) | Heat data | ||
| 3 | Phyllis Francis | UO | 50.86 | 1 (3) | Heat data | ||
| 4 | Courtney Okolo | TEX | 51.96 | 1 (4) | Heat data | ||
| 5 | Regina George | ARK | 51.97 | 1 (5) | Heat data | ||
| 6 | Jody-Ann Muir | MSST | 52.56 | 1 (6) | Heat data | ||
| 7 | Lenora Guion-Firmin | UMES | 52.59 | 1 (7) | Heat data | ||
| 8 | Erika Rucker | SCAR | 53.20 | 1 (8) | Heat data |