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Trail runs in United Kingdom

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Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

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Trail Running calendar near Mason City 2025-2026

Name: Meyerhoff's Mayhem
Start: 2025-10-17
End: 2025-10-17
Location: Cedar Falls

We have found 2 Trailruns within 80 miles of Mason City. See below where and when you can find the races.

Friday Oct 17

Meyerhoff's Mayhem

Cedar Falls - 57 mi from Mason City

View race

2 mi

4 mi

Event format Meyerhoff's Mayhem is a 48-hour endurance event featuring repeated short legs. Participants complete 4 miles every four hours for the 48-hour period, with an optional 2-mile add-on after the final leg. 4 miles repeated every 4..

December 2025

Wednesday Dec 31

The Critter

Waverly - 47 mi from Mason City

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Backyard Ultra

Event details The Critter is set for Wednesday, December 31, 2025, at 2482 Grand Ave, Waverly, IA, held at Ingawanis Adventure Base. Registration closes on December 28. Distances and options: 12-hour 8-hour 4-hour 10K (single loop) Timed..