O'brien Trail Races

Marine on Saint Croix, United States • 20 Sep 2025

The O'Brien Trail Races, scheduled for September 20, 2025, at William O'Brien State Park in Marine on St. Croix, Minnesota, offers a variety of race distances including 50K, 25K, and 5K. Participants can enjoy scenic trails while competing for awards in the longer races.

Registration opens on February 1, 2025, with options for race shirts to keep costs down. The event emphasizes a family-friendly atmosphere, particularly with the affordable 5K entry fee. Post-race refreshments will be provided, and all finishers will receive a commemorative print.

The event aims to accommodate both new and experienced runners. Visit the organization's website for the most recent information.

Race information

50 km
50k
25 km
25k
5 km
Visit the organization's website for the most recent information.
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