| 1) | Jackson, Jon | Dickinson | 1:52.85 (05/02-05/04) | 1:54.25 (04/12-04/13) | 1:54.80 (05/12) | 1:56.21 (03/14-03/15) | 1:56.55 (05/02-05/04) | 1:56.99 (03/29) |
| 2) | Heckman, Nevin | Bridgewater (Va.) | 1:52.85 (05/12) | 1:54.26 (05/08) | 1:55.38 (04/12) | 1:56.58 (04/18-04/19) |