Jeffrey Tenbrink (M64)
2026
2 Races | 62 mi.Summer Trailfest Ultra
Jun 13th 2026
| Laingsburg, MI
Distance
50 KM
Overall
17
/ 90
Division (M)
12
/ 45
5:56:10
Yankee Springs Winter Challenge
Jan 3rd 2026
| Middleville, MI
Distance
50 KM
Overall
10
/ 42
Division (M)
10
/ 36
5:55:01
2025
2 Races | 62 mi.Grand Island Trail 50K
Jul 26th 2025
| Munising, MI
Distance
50 KM
Overall
21
/ 67
Division (M)
14
/ 45
5:27:57
Summer Trailfest Ultra
Jun 14th 2025
| Laingsburg, MI
Distance
50 KM
Overall
44
/ 83
Division (M)
33
/ 55
6:11:22
2024
3 Races | 93 mi.The Ultra Bird 12hr and 6hr Trail Races
Oct 19th 2024
| West Olive, MI
Duration
6 Hours
Overall
4
/ 9
Division (M)
6
/ 7
31
Grand Island Trail 50K
Jul 27th 2024
| Munising, MI
Distance
50 KM
Overall
39
/ 92
Division (M)
25
/ 60
5:42:37
Summer Trailfest Ultra
Jun 15th 2024
| Laingsburg, MI
Distance
50 KM
Overall
18
/ 64
Division (M)
14
/ 45
5:33:44
2023
1 Race | 31 mi.Summer Trailfest Ultra
Jun 17th 2023
| Laingsburg, MI
Distance
50 KM
Overall
23
/ 78
Division (M)
19
/ 44
5:44:40
2022
1 Race | 31 mi.Summer Trailfest Ultra
Jun 18th 2022
| Laingsburg, MI
Distance
50 KM
Overall
23
/ 49
Division (M)
17
/ 29
6:16:50
2021
1 Race | 31 mi.The Riley Trails 50k
Apr 17th 2021
| Holland, MI
Distance
50 KM
Overall
25
/ 59
Division (M)
22
/ 37
5:41:55
10
Races
5y 1m 28d
Longevity
311
Lifetime Miles
Personal Bests
50k
(9)
5:27:57
2025
6hr
(1)
31
2024
Distance by Year
2026
62
Miles
2 Races
2025
62
Miles
2 Races
2024
93
Miles
3 Races
2023
31
Miles
1 Race
2022
31
Miles
1 Race
2021
31
Miles
1 Race
Multiple Performances
Senior Grand Master Course Record
5:33:44
50 KM
Achievements are awarded for races with 25 or more finishers and courses with 200 or more finishers.
Masters: 40-49 / Grand Masters: 50-59 / Senior Grand Masters: 60+