| 1) | Brinn, Tommy | Nebraska | 1:49.17 (04/05-04/07) | 1:49.81 (05/11-05/13) | 1:49.85 (04/19-04/21) | 1:50.11 (03/30-03/31) | 1:52.22 (04/20-04/21) |
| 2) | van Ingen, Erik | Binghamton | 1:49.17 (04/14-04/15) | 1:50.50 (05/05-05/06) | 1:52.91 (05/05-05/06) | ||
| 3) | Bayer, Andrew | Indiana | 1:49.17 (04/14) |