Jamie O'Brien has 14 recorded races from Westlake Village, CA, USA.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-08-30 | Olympic Tri | 31 | ||
| 2026-07-18 | 5K RUN | 5K | 40:38 | 101 |
| 2026-03-16 | St. Patrick's Day Dash 5K | 5K | 25:06 | 315 |
| 2025-06-07 | UConn Health Half Marathon, 10K & 5K on Iron Horse | 10K | 1:00:40 | 244 |
| 2025-04-12 | 21st Annual Pat's Run 4.2 Mile Run/Walk (In-Person) | 49:06 | 6880 | |
| 2025-03-16 | St. Patrick's Day Dash 5K | 5K | 23:08 | 177 |
| 2024-04-13 | 20th Annual Pat's Run 4.2 Mile Run/Walk (In-Person) | 53:45 | 9214 | |
| 2024-03-17 | St. Patrick's Day Dash 5K | 5K | 21:57 | 162 |
| 2023-09-30 | Utah Schools Sports Association State Championship Meet 5K Varsity Boys | 5K | 1 | |
| 2018-11-04 | TCS New York City Marathon 2018 | Marathon | 4:40:42 | 29562 |
| Bank of America Chicago Marathon 2025 | Marathon | 4:25:55 | 31087 | |
| Bank of America Chicago Marathon 2024 | Marathon | 4:25:55 | 31087 | |
| Bank of America Chicago Marathon 2023 | Marathon | 4:25:55 | 31087 | |
| Bank of America Chicago Marathon 2022 | Marathon | 4:25:55 | 31087 |