Zumbro Endurance Run

Theilman, United States • 10-11 Apr 2026

Event Overview

The Zumbro Endurance Run takes place in the Zumbro Bottoms Management Unit in Minnesota. This trail running event is organized by Rocksteady Running and features multiple long-distance categories held over two days. The course traverses the hardwood forests, limestone bluffs, and river bottoms of the region.

Participants navigate a variety of surfaces and terrain types typical of the Minnesota landscape, including singletrack trails, sand coulees, and sections of old railroad beds. The elevation profile includes significant climbs, such as the Scenic Overlook and Paddys Hill, as well as descents like Ant Hill. Depending on seasonal conditions in April, runners may encounter mud, snow, or dry trails.

Distance Options

The event offers four distinct race distances:

  • 100 Miles
  • 50 Miles
  • 34 Miles
  • 17 Miles

Logistics and Support

The race infrastructure includes several aid stations positioned along the route to provide supplies to runners. These stations are managed by volunteers and offer items such as bacon, doughnuts, and pizza. For the longer distances, the event continues through the night, necessitating the use of headlamps.

The finish area features a "Wall of Fame" where 100-mile finishers are recognized. Finishers of the various distances receive commemorative medals or buckles, specifically wood medals for some categories and buckles for those completing the 100-mile distance. The event follows a no-refund policy for registration. Visit the organization's website for the most recent information.

Race information

100 mi
100 Mile
50 mi
50 Mile
34 mi
34 Mile
17 mi
17 Mile
Visit the organization's website for the most recent information.
Trail runs nearby

A trail running event at Chester Woods in Eyota, Minnesota on June 7, 2026 offering 5K, 10 mile, 20 mile and 50K looped courses with registration open October 1, 2025 and no race cutoffs.

An 11 mile trail race on the Douglas State Trail in Oronoco on August 1, 2026. The course runs on paved rail trail under a tree canopy, celebrates a 50th anniversary, and includes a race gift plus post race refreshments.

A trail race at Frontenac State Park on September 26, 2026, offering 5-mile and 10-mile courses across prairie, single-track and climbs. The event is cupless with water stations, camping in the park, and nearby hotels.

Tour de Essex on October 10, 2026 at Essex Park in Rochester MN features a trail 7k, a road 10k, and an Essex Challenge for runners who enter both. All event profits support trail maintenance.

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