| 1) | Keller, Kourtney | Kansas | 1:00.25 (05/16-05/18) | 1:00.49 (05/16-05/18) | 1:01.93 (04/16-04/19) | 1:02.21 (04/16-04/19) | 1:02.29 (05/03) | 1:02.89 (03/26-03/29) | 1:03.43 (04/05) | 1:03.52 (04/11-04/12) |
| 2) | Bushnell, Paige | UC Irvine | 1:00.25 (05/16) | 1:01.76 (05/02-05/03) | 1:02.23 (04/17-04/19) | 1:02.39 (03/15) | 1:02.50 (05/16) | 1:02.98 (04/11) | 1:03.74 (04/04-04/05) | 1:05.50 (03/27-03/29) |