| Lane | # | Athlete | Team | Seed | Note |
|---|---|---|---|---|---|
| 4 | 314 | HEER, Ashan | Ocean Athletics Track & Field Club | 1:12.00 | |
| 5 | 328 | PHILLIPS, Jonathan | Ocean Athletics Track & Field Club | NT | |
| 6 | 18 | KELLY, Spencer | Coquitlam Cheetahs | NT |
| Lane | # | Athlete | Team | Seed | Note |
|---|---|---|---|---|---|
| 2 | 613 | ZHANG, Victor | Vancouver Thunderbirds | 59.28 | |
| 3 | 510 | PHILLIPS, Miguel | Universal Athletics Club | 52.41 | |
| 4 | 402 | GUTIERREZ DUARTE, Sebastián | Royal City Track & Field Club | 51.33 | |
| 5 | 586 | BRACE, Elliot | Vancouver Thunderbirds | 51.12 | |
| 6 | 605 | MORAN, Ethan | Vancouver Thunderbirds | 50.78 | |
| 7 | 342 | ZHANG, Daniel | Ocean Athletics Track & Field Club | 53.00 | |
| 8 | 598 | KIMOTO, Yuki | Vancouver Thunderbirds | 53.39 |