| 1) | Holder, Montayla | Iowa | 58.29 (04/02-04/04) | 58.41 (04/22-04/26) | 58.55 (05/15-05/17) | 58.59 (03/20-03/21) | 59.34 (05/15-05/17) | |
| 2) | Archer, Ocian | Miss State | 58.29 (05/01-05/02) | 59.19 (04/10) | 1:00.50 (05/14-05/16) | 1:00.86 (04/02-04/04) | 1:01.10 (04/16-04/18) | 1:01.78 (03/27-03/28) |