United StatesFixed distance
Sean O'Brien 50 km Trail Race
31 Jan2026
Distance
50km
Finishers
10762 men45 women
Winning time
4:35:12h
Median pace
5.64km/h
Pace distribution
107 finishers · 3.84–10.90 km/h · mean 5.93
Every finisher ran the same 50 km course, so these paces are directly comparable.
Histogram of finisher pace. 107 finishers ranged from 3.84 to 10.90 kilometres per hour, with a mean of 5.93 and a median of 5.64. The busiest band is 4.5 to 5.0 kilometres per hour, with 17 finishers.
Results
Ranks 101–107 of 107
| Rank | Runner | Time | Pace | Cat. | Placing |
|---|---|---|---|---|---|
| 101 | *Fullerton, CA | 12:12:28h | 4.10 | M40 | 59th M · 7th M40 |
| 102 | *Fullerton, CA | 12:12:30h | 4.10 | M45 | 60th M · 8th M45 |
| 103 | *La Habra, CA | 12:19:23h | 4.06 | W50 | 43rd F · 8th W50 |
| 104 | *Grand Rapids, MI | 12:36:51h | 3.96 | M50 | 61st M · 7th M50 |
| 105 | *Bakersfield, CA | 12:51:09h | 3.89 | W35 | 44th F · 4th W35 |
| 106 | *Pasadena, CA | 13:00:50h | 3.84 | M50 | 62nd M · 8th M50 |
| 107 | *Pasadena, CA | 13:00:59h | 3.84 | W45 | 45th F · 7th W45 |
- 101*Fullerton, CA59th M · 7th M40Time12:12:28hPace4.10Cat.M40
- 102*Fullerton, CA60th M · 8th M45Time12:12:30hPace4.10Cat.M45
- 103*La Habra, CA43rd F · 8th W50Time12:19:23hPace4.06Cat.W50
- 104*Grand Rapids, MI61st M · 7th M50Time12:36:51hPace3.96Cat.M50
- 105*Bakersfield, CA44th F · 4th W35Time12:51:09hPace3.89Cat.W35
- 106*Pasadena, CA62nd M · 8th M50Time13:00:50hPace3.84Cat.M50
- 107*Pasadena, CA45th F · 7th W45Time13:00:59hPace3.84Cat.W45
Showing ranks 101–107 of 107