| 1) | Brennan, Ryan | Penn State | 1:49.28 (05/10-05/12) | 1:49.32 (04/18-04/20) | 1:49.49 (04/06) | 1:51.22 (04/13) | 1:51.60 (05/10-05/12) |
| 2) | Grosvenor, Grant | Montana State | 1:49.28 (04/11-04/13) | 1:49.66 (05/03) | 1:51.31 (05/08-05/11) | 1:52.48 (05/08-05/11) | 1:53.50 (04/27) |