| Time | Date | Name | Meet |
|---|---|---|---|
| 50.27 | Feb. 26, 2022 | Jaden Pospishil | NSAA Swimming Championships |
| 50.98 | Feb. 26, 2021 | Jaden Pospishil | NSAA State High School Championships |
| 52.96 | Feb. 24, 2017 | Pedro Hijano-Fatheddine | Nebraska State Championships |
| 53.13 | Feb. 11, 2017 | Pedro Hijano-Fatheddine | Metro Conference Championships |
| 53.21 | Feb. 20, 2014 | Caleb Jeffrey | 14 Nebraska State Championships |
| 53.88 | Feb. 27, 2009 | Drew Guinan | 09 Nebraska State Championships |
