| 1) | Peabody, Breanna | Oakland | 59.29 (05/02) | 59.42 (05/09-05/11) | 1:00.17 (04/27) | 1:01.41 (05/09-05/11) | 1:01.61 (04/19-04/20) | 1:02.43 (03/29-03/30) | 1:04.57 (04/06) |
| 2) | Chandler, Shani | Alabama | 59.29 (04/12-04/13) | 1:00.07 (04/24-04/27) | 1:00.19 (04/20) | 1:00.65 (04/06) | 1:01.71 (05/09-05/12) | 1:02.02 (03/22-03/23) |