Justin Masui has 2 recorded races from WA.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-07-26 | Run Super Series | Jack and Jill Downhill Marathon Half Marathon Sunday | Half Marathon | 1:46:33 | 50 |
| 2025-07-27 | Run Super Series | Jack and Jill Downhill Marathon Half Marathon Sunday | Half Marathon | 1:49:08 | 130 |