| Time | Date | Name | Meet |
|---|---|---|---|
| 51.99 | March 8, 2024 | Charlie Egeland | Princeton Men's Last Chance Meet |
| 52.22 | Feb. 2, 2024 | Charlie Egeland | Princeton vs. Harvard, Yale |
| 53.21 | Nov. 17, 2023 | Charlie Egeland | SMU Invitational |
| 53.39 | Feb. 24, 2023 | Alex Hazlett | Ivy League Championships (M) |
| 53.81 | Nov. 18, 2022 | Alex Deng | Ohio State Invitational |
| 53.85 | Feb. 23, 2018 | Dorje Wu | Ivy League Championships (M) |
| 54.28 | Feb. 27, 2015 | Hoi Tung Tsui | Ivy League Championships (M) |
| 54.68 | Feb. 28, 2014 | Andrew Heymann | Ivy League Championships (M) |
| 54.91 | Jan. 31, 2014 | Andrew Heymann | Yale vs. Harvard, Princeton |
| 55.23 | Nov. 14, 2009 | Colin McCarthy | Columbia vs. Yale |
| 55.99 | March 6, 2009 | Craig Steen | Eastern Intercollegiate Swim League Championships - Day Two - Finals |
| 56.84 | Feb. 23, 2007 | Colin Stalnecker | EISL Championships |
| 57.29 | March 4, 2004 | Tom Hardy | Men's EISL Championships |
| 57.34 | Jan. 30, 2004 | Tom Hardy | Men's Harvard-Yale-Princeton |
