Jennifer O'Brien (F)
2026
1 Race | 50 mi.Sinister 7 Ultra
Jul 11th 2026
| Crowsnest Pass, AB
Distance
50 Miles
Overall
108
/ 200
Division (F)
29
/ 59
15:51:25
2025
3 Races | 184 mi.Iron Horse Ultra
Oct 4th 2025
| St. Paul, AB
Distance
100 Miles
Overall
10
/ 10
Division (F)
4
/ 4
26:09:24
Black Spur Ultra
Aug 23rd 2025
| Kimberley, BC
Distance
54 KM
Overall
86
/ 147
Division (F)
35
/ 67
10:06:09
Sinister 7 Ultra
Jul 12th 2025
| Crowsnest Pass, AB
Distance
50 Miles
Overall
152
/ 166
Division (F)
59
/ 64
18:46:09
2024
3 Races | 281 mi.The Divide 200
Sep 10th 2024
| Castle Mountain Resort, AB
Distance
200 Miles
Overall
56
/ 56
Division (F)
16
/ 16
99:29:15
Sinister 7 Ultra
Jul 13th 2024
| Crowsnest Pass, AB
Distance
50 Miles
Overall
162
/ 200
Division (F)
46
/ 71
18:19:13
Hidden Oasis Ultra
Jun 8th 2024
| Cypress Hills Interprovincial Park, AB
Distance
50 KM
Overall
51
/ 59
Division (F)
23
/ 27
9:58
2023
1 Race | 31 mi.Sinister 7 Ultra
Jul 8th 2023
| Crowsnest Pass, AB
Distance
50 KM
Overall
223
/ 245
Division (F)
92
/ 105
11:21:52
2017
1 Race | 35 mi.Limberlost Challenge
Jul 8th 2017
| Lake of Bays, ON
Distance
56 KM
Overall
34
/ 62
Division (F)
7
/ 20
8:19:57
9
Races
9y 0m 5d
Longevity
580
Lifetime Miles
Personal Bests
50k
(2)
9:58:00
2024
50m
(3)
15:51:25
2026
100m
(1)
26:09:24
2025
Distance by Year
2026
50
Miles
1 Race
2025
184
Miles
3 Races
2024
281
Miles
3 Races
2023
31
Miles
1 Race
2017
35
Miles
1 Race