| 1) | Claxton, Grace | Albany | 58.51 (05/02-05/03) | 58.52 (04/23-04/25) | 1:01.12 (05/02-05/03) | 1:01.50 (03/27-03/28) | 1:01.72 (04/17-04/18) |
| 2) | Meinders, Susan | Northern Colorado | 58.51 (04/04) | 58.59 (05/01) | 59.33 (05/13-05/16) | 59.77 (04/16-04/18) | 1:00.61 (05/13-05/16) |