| 1) | Spagnola, Emma | Minnesota | 58.88 (05/13-05/15) | 58.97 (04/22-04/23) | 59.68 (04/08) | 59.97 (04/08-04/09) | 1:00.38 (04/30) | 1:00.91 (04/02) |
| 2) | Sanford, Sarah | Samford | 58.88 (04/22-04/23) | 59.76 (04/14-04/16) | 59.84 (03/31-04/02) | 1:00.06 (05/12-05/13) | 1:04.01 (05/12-05/13) |