| Stadium | 50.46 | Yuki Matsushita | Mizuno (Japan) | 3/24/2018 | |
| Westmont | 51.73 | Phil Pitney | Westmont | 5/10/1986 |
| Lane | # | Athlete | Team | Seed |
|---|---|---|---|---|
| 2 | 814 | HANNA, Isaiah | Westmont |
1:01.48 |
| 3 | 206 | DE LEON, Dominic | Cal Lutheran |
1:00.38 |
| 4 | 363 | LEMMA, Grady | Pacific Lutheran |
54.93 |
| 5 | 274 | HATCH, Connor | George Fox |
59.21 |
| 6 | 817 | HOOK, Caleb | Westmont |
1:01.17 |
| 7 | 310 | WATKINS, Silas | George Fox |
1:02.27 |
| 8 | 421 | CLANTON, Ty | The Master's |
NT |