Isaac Sy has 5 recorded races from San Francisco, CA.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-07-26 | San Francisco Ultramarathon Marathon Lap 2 | Marathon | 4:19:40 | 25 |
| 2026-07-26 | San Francisco Ultramarathon | Ultra Marathon | 8:21:00 | 28 |
| 2026-07-25 | San Francisco Ultramarathon Marathon Lap 1 | Marathon | 4:01:21 | 31 |
| 2025-12-07 | California International Marathon | 3:10:34 | 1998 | |
| 2025-10-11 | Diplo's Run Club - San Francisco 5K | 5K | 17:33 | 41 |