Zumbro Endurance Run
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Zumbro Endurance Run
Zumbro Endurance Run is a multi-distance trail running event held at the Zumbro Bottoms Management Unit in Minnesota on April 9 and 10, 2027. The event is presented by the Endless Summer Trail Run Series / Rocksteady Running and runs on a looped trail course with natural features and volunteer-supported aid stations.
Distances offered:
- 100 miles
- 50 miles
- 34 miles
- 17 miles
The course uses a common 17-mile loop. Race formats require multiple loops: the 100-mile distance uses six loops, the 50-mile three loops, the 34-mile two loops, and the 17-mile one loop. The event schedule includes packet pickup and check-in for each distance, staggered race starts, and estimated first-finisher windows for each race. Official time limits for completion are posted as overall cutoffs: 34 hours for the 100-mile race, 18 hours for the 50-mile race, 11 hours for the 34-mile race, and 9 hours for the 17-mile race. The published schedule is subject to change.
Course descriptions and photo captions on the event pages note hardwood forests, ridges, sand coulees, river crossings, singletrack and variable terrain. Volunteers staff aid stations and timing operations throughout the event. Visit the organization's website for the most recent information.
