| 1) | Williams, Schantell | California | 1:01.14 (04/01-04/02) | 1:01.20 (05/01) | 1:01.21 (04/23) | 1:01.27 (03/25-03/26) | 1:01.47 (04/09) | 1:02.58 (03/18-03/19) | 1:02.77 (05/14-05/15) | 1:03.45 (04/22) |
| 2) | Thomas, Taylor | Wichita State | 1:01.14 (05/06) | 1:01.25 (04/02) | 1:01.28 (04/30) | 1:01.52 (04/22-04/23) | 1:02.01 (04/13-04/16) | 1:02.95 (03/18-03/19) | 1:03.46 (03/25-03/26) | 1:09.09 (05/13-05/15) |
| 3) | Young, Mary | Drake | 1:01.14 (03/18-03/19) | 1:01.45 (04/15-04/16) | 1:01.70 (03/25-03/26) | 1:03.24 (04/27-04/30) | 1:04.11 (05/13-05/15) | 1:04.85 (04/09) | 1:05.06 (05/13-05/15) |