O'Brien, Michael
United StatesManBorn 19832014 – 2025Runner id 571252
Events
15
2014 – 2025
Best pace
11.742
km/h · 2021
Best finish
3rd
of 125 · 2022
Distance raced
1,610
km · splits not double-counted
Pace over time
km/h · higher is faster
Pace over time: 15 races from 2014 to 2025, ranging from 4.88 to 11.90 kilometres per hour, where higher is faster. A second, age-graded series is drawn above it; the gap between the two is the age credit.
- Actual pace
- Age-graded pace
Results
| Date | Event | Distance | Result | Pace km/h | Placing |
|---|---|---|---|---|---|
| 2014-08-16 | 100mi | 24:13:17 h | 6.644 | 59/356 | |
| 2015-07-12 | 50mi | 8:33:14 h | 9.407 | 22/355 | |
| 2016-09-16 | 100mi | 27:10:13 h | 5.923 | 18/150 | |
| 2018-07-08 | Leadville Silver Rush 50 Mile RunUnited States | 50mi | 8:46:22 h | 9.172 | 26/400 |
| 2018-08-18 | 100mi | 23:14:22 h | 6.925 | 48/379 | |
| 2019-09-07 | 50km | 5:24:03 h | 9.258 | 6/120 | |
| 2021-07-24 | 50km | 4:15:30 h | 11.742 | 3/93 | |
| 2021-08-20 | 100mi | 32:35:28 h | 4.938 | 1/19 | |
| 2022-09-10 | 50km | 5:01:28 h | 9.951 | 3/125 | |
| 2022-11-25 | Ultra-Trail Cape Town (UTCT) 100 miSouth Africa | 100mi | 32:28:25 h | 4.956 | 31/94 |
| 2024-02-10 | 50km | 7:22:11 h | 6.785 | 166/212 | |
| 2024-08-24 | 38mi | 8:43:26 h | 7.010 | 5/104 | |
| 2024-09-28 | 69km | 8:30:47 h | 8.105 | 5/199 | |
| 2025-07-18 | 100mi | 25:52:52 h | 6.218 | 17/166 | |
| 2025-08-25 | 153km | 31:22:52 h | 4.876 | 268/1207 |