Thomas O'Brien has 3 recorded races from potomac, Maryland, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-10-11 | Jared Coones Memorial Pumpkin Run/Walk 5K 5K Run/Walk | 5K | 50:44 | 1574 |
| 2023-05-27 | Justin's Beach House 5k Run & 2 Mile Walk JBH 2 Mile Walk | 32:05 | 21 | |
| 2022-05-28 | Justin's Beach House 5k Run & 2 Mile Walk JBH 2 Mile Walk | 34:21 | 35 |