Gian Manuel Tan has 3 recorded races from Holy Spirit, Quezon City, PH.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-11-24 | 2024 Rock 'n' Roll Manila Half Marathon | Half Marathon | 1:36:13 | 22 |
| 2023-11-26 | 2023 Rock 'n' Roll Manila Half Marathon | Half Marathon | 1:54:43 | 128 |
| 2022-06-19 | 2022 Rock 'n' Roll Manila Half Marathon | Half Marathon | 1:42:29 | 65 |