Billy John Mercado has 2 recorded races from Brgy. Tagumpay, QUEZON CITY, PHL.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-11-29 | 2025 Rock 'n' Roll Manila Half Marathon | Half Marathon | 2:54:12 | 1550 |
| 2022-06-19 | 2022 Rock 'n' Roll Manila Half Marathon | Half Marathon | 2:48:18 | 712 |