Hiroyuki TAMAGAWA has 8 recorded races from JP.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-04-13 | Schneider Electric Marathon de Paris 2025 — Schneider Electric Marathon de Paris | Marathon | 3:04:23 | 2600 |
| 2024-04-07 | Schneider Electric Marathon de Paris 2024 — Marathon de Paris 2024 | Marathon | 3:00:07 | 2168 |
| 2023-04-02 | Schneider Electric Marathon de Paris 2023 — Running 42.195km | Marathon | 2:59:16 | 2224 |
| TCS London Marathon 2025 | Marathon | 3:03:30 | 3438 | |
| TCS London Marathon 2024 | Marathon | 3:00:43 | 3767 |