Hiroyuki Otsuka has 2 recorded races from West Bloomfield, Michigan, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-07-04 | 2026 Volksläufe - The People's Race Half Marathon | Half Marathon | 2:00:19 | 112 |
| 2026-05-30 | Dexter-Ann Arbor Run Half Marathon | 2:07:36 | 1239 |