| 1) | Lahbi, Jacopo | Alabama | 1:48.69 (04/11) | 1:49.91 (05/15-05/18) | 1:50.05 (05/02-05/03) | 1:50.45 (04/05) | 1:50.88 (04/17-04/19) | |
| 2) | Sanders, Chris | La Salle | 1:48.69 (05/12) | 1:50.66 (04/16-04/19) | 1:51.06 (04/12) | 1:51.61 (05/03-05/04) | 1:51.71 (05/03-05/04) | 1:52.65 (04/03-04/05) |