| 1) | Thompson, Isaiah | UC Irvine | 1:49.87 (05/02-05/03) | 1:50.64 (04/11) | 1:50.94 (05/16) | 1:51.23 (05/16) | 1:51.89 (04/04-04/05) | 1:52.22 (03/21-03/22) | 1:53.12 (03/27-03/29) | 1:53.71 (04/04-04/05) |
| 2) | Stutzman, Tyler | Stanford | 1:49.87 (04/04-04/05) | 1:52.33 (04/12) |