Ralph Ambuchi has 4 recorded races from Mandaluyong, PHL.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-11-29 | 2025 Rock 'n' Roll Manila Marathon | Marathon | 6:47:24 | 1088 |
| 2024-11-24 | 2024 Rock 'n' Roll Manila Half Marathon | Half Marathon | 3:39:57 | 2440 |
| 2023-11-26 | 2023 Rock 'n' Roll Manila Half Marathon | Half Marathon | 3:08:26 | 1978 |
| 2022-06-19 | 2022 Rock 'n' Roll Manila Half Marathon | Half Marathon | 3:27:59 | 1018 |