| 1) | Mongiovi, Missy | Stanford | 54.84 (04/01-04/02) | 55.15 (05/01) | 55.32 (04/09) | 55.84 (04/23) | 56.15 (05/14-05/15) |
| 2) | Mukes, Mia | Oklahoma | 54.84 (05/13-05/15) | 55.36 (05/01) | 55.45 (04/22-04/23) | 56.30 (03/26) | |
| 3) | Kitching, Melissa | North Dakota State | 54.84 (04/14-04/16) |