Alex Um (M40)
2026
2 Races | 162 mi.Zion Ultras and Trail Half Marathon
Apr 11th 2026
| Virgin, UT
Distance
100 Miles
Overall
162
/ 171
Division (M)
132
/ 139
35:14:52
Sean O'Brien 100k/50M/50k
Jan 31st 2026
| Malibu, CA
Distance
100 KM
Overall
68
/ 84
Division (M)
50
/ 65
16:21:16
2025
2 Races | 81 mi.Griffith Park Trail
Nov 1st 2025
| Los Angeles, CA
Distance
50 KM
Overall
33
/ 84
Division (M)
26
/ 57
6:13:12
Malibu Canyon Trail Races
Jun 7th 2025
| Malibu, CA
Distance
50 Miles
Overall
42
/ 80
Division (M)
26
/ 57
12:55:45
4
Races
0y 10m 8d
Longevity
243
Lifetime Miles
Personal Bests
50k
(1)
6:13:12
2025
50m
(1)
12:55:45
2025
100k
(1)
16:21:16
2026
100m
(1)
35:14:52
2026
Distance by Year
2026
162
Miles
2 Races
2025
81
Miles
2 Races