Theilman, MN

The Zumbro 100 Mile Endurance Run is a six-loop (6 x 16.7 = 100.2 Miles) 100% trail ultramarathon.  The Zumbro Endurance Run 100MI trail races take place within the Zumbro River Bottoms Management Unit in Southeastern Minnesota’s Bluff Country – just outside of the tiny village of Theilman, MN.

The Zumbro 50 Mile Endurance Run is a three-loop (3 x 16.7 = 50 Miles) 100% trail ultramarathon

Upcoming Races

Apr 12 2025
34 Miles
Two 17-mile loops
4,500 4,500 ft.
Multiple Loop Course
5 Aid Stations
12:00 Cutoff
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts
Apr 12 2025
50 Miles
6,750 6,750 ft.
Multiple Loop Course
8 Aid Stations
18:00 Cutoff
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts
Apr 11 2025
100 Miles
13,500 13,500 ft.
Multiple Loop Course
17 Aid Stations
34:00 Cutoff
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts

Additional Distances

This event also has the following non ultra distances

17 Miles

Results

Date Finishers Top Result (M) Top Result (F)
04/13/24 84 5:14:09 5:14:45
04/08/23 77 5:19:57 6:15:54
04/08/22 79 5:05:40 5:39:20
04/08/21 121 5:23:55 6:30:42
Date Finishers Top Result (M) Top Result (F)
04/13/24 80 8:38:48 10:18:36
04/08/23 70 8:57:43 12:36:30
04/08/22 71 9:28:14 11:07:08
04/11/20 Race Cancelled
04/13/19 Race Cancelled
04/13/18 49 9:13:44 10:15:45
04/08/17 149 7:52:41 10:06:15
04/08/16 128 7:49:36 10:08:09
04/10/15 100 8:10:45 10:28:47
04/11/14 61 8:30:08 10:54:03
04/13/13 53 8:53:44 14:04:55
04/13/12 39 9:56:39 9:30:32
Date Finishers Top Result (M) Top Result (F)
04/12/24 44 22:12:17 30:33:49
04/08/23 24 21:39:41 29:43:23
04/08/22 31 22:26:26 25:19:34
04/10/20 Race Cancelled
04/12/19 Race Cancelled
04/13/18 20 28:09:14 30:49:28
04/07/17 48 19:42:48 22:34:11
04/08/16 52 20:43:45 23:46:36
04/10/15 46 18:04:00 24:53:10
04/11/14 26 20:30:52 23:21:02
04/12/13 23 21:46:18 26:47:20
04/13/12 30 21:16:04 30:10:06
04/08/11 16 21:53:05 26:13:36
04/09/10 17 23:21:21 30:00:44
04/10/09 11 26:18:21 28:49:53
Date Finishers Top Result (M) Top Result (F)
04/10/09 5 13:51:30 13:07:47