21"
| Lane | # | Athlete | Team | Seed |
|---|---|---|---|---|
| 1 | 713 | BEHL, Divytay | Universal Athletics Club (UATH) | NT |
| 2 | 474 | TRIEU, Coby | Royal City Track & Field Club (CITY) | NT |
| 3 | 473 | TO, Spencer | Royal City Track & Field Club (CITY) | NT |
| 4 | 463 | CELLI, Asher | Royal City Track & Field Club (CITY) | NT |
| 5 | 466 | MANAK, Ishaan | Royal City Track & Field Club (CITY) | NT |
| 6 | 470 | SENIOR, Lennon | Royal City Track & Field Club (CITY) | NT |
| 7 | 475 | WONG, Hayden | Royal City Track & Field Club (CITY) | NT |