O'Brien, Westen
United StatesManBorn 19912025 – 2026Runner id 2386254
Events
6
2 race dates
Best pace
6.829
km/h · 2026
Best finish
8th
of 26 · 2026
Distance raced
239
km · splits not double-counted
Both results, on one pace scale
km/h · higher is faster
4.233 km/hMay 2025 · 24h
4.230 km/hMay 2025 · 100km
Both results on one pace scale, with no line drawn between them — these are different race formats, so the gap is mostly the race rather than the runner.
Results
| Date | Event | Distance | Result | Pace km/h | Placing |
|---|---|---|---|---|---|
| 2025-05-10 | 24h | 101.600 km | 4.233 | 23/40 | |
| 2025-05-10 | Dawn to Dusk to Dawn 24 Hour - 100km SplitUnited StatesIAU BronzeSplit of a longer race in this career; not counted again in the distance total | 100km | 23:38:32 h | 4.230 | 24/24 |
| 2025-05-10 | Dawn to Dusk to Dawn 24 Hour - 50mi SplitUnited StatesIAU BronzeSplit of a longer race in this career; not counted again in the distance total | 50mi | 17:08:49 h | 4.693 | 27/32 |
| 2026-05-09 | 24h | 137.598 km | 5.733 | 8/26 | |
| 2026-05-09 | Dawn to Dusk to Dawn 24 Hour - 100km SplitUnited StatesIAU BronzeSplit of a longer race in this career; not counted again in the distance total | 100km | 14:53:35 h | 6.715 | 10/19 |
| 2026-05-09 | Dawn to Dusk to Dawn 24 Hour - 50mi SplitUnited StatesIAU BronzeSplit of a longer race in this career; not counted again in the distance total | 50mi | 11:47:01 h | 6.829 | 11/22 |