Storm the Woods
Eyota, MN, United States
June 7, 2026
Storm the Woods – Mason Run at Chester Woods
Join us at Chester Woods Park in Eyota, MN for a trail adventure like no other. Part of The Storm Trail Race Series, this event carries on the legacy of the Mason Run with new energy and community impact.
This year marks the 20th Annual Mason Run, and we’re celebrating in a big way—by adding a brand-new 20 Mile race to the lineup! It’s the perfect distance to honor two decades of trail tradition while testing your endurance on Chester Woods’ rolling terrain.
Choose your challenge—5K, 10 Mile, 20 Mile or 50K —on scenic trails featuring rolling terrain, wooded paths, and the notorious Big Dam Hill. Expect well-stocked aid stations, great swag, and a finish-line celebration that feels more like trailgating than a race.
THERE ARE NO CUTOFFS FOR ANY DISTANCES! WANT TO TRY SOMETHING BIG? GO FOR IT! WE WILL BE THERE AT THE FINISH LINE FOR YOU!
ATRA Youth Trail Race Certified
We are proud to announce that Storm the Park, Storm the Farm, and Storm the Woods are ATRA Youth Trail Race Certified. Participants under the age of 19 receive a 15% discount on these events
Come storm the woods and be part of something bigger—your run supports youth mental health programs through Storm Sporting Events.
Race Day Schedule
5:15 AM - Check in starts for all distances located in swim beach parking lot area.
Note change from prior years - There will not be Saturday night check in. Check in will be ONLY on Sunday before the race.
6:00 AM - 50K Starts
7:00 AM - 20 Mile Starts
8:00 AM - 10 Mile Starts
8:05 AM - 5K Starts
Aid Stations
Aid stations will have water, madarin orange Tailwind, chips, cookies, a variety of candy, pickles, bananas and ice. Aid station #1 will also have peanut butter and jelly sandwiches.
50k and 20 mile events will have three aid stations along the course. Aid Station #1 will be accessed twice, around 3.5 miles and 6.5 miles. Aid Station #2 will be located at the top of the Big Damn Hill around mile 8.5. Aid Station #3 will be at 10 miles and will be located at the race start area. You will also have access to your vehicle at the end of each loop.
10 mile event will have two aid stations along the course. Aid Station #1 will be accessed twice, around 3.5 miles and 6.5 miles. Aid Station #2 will be located at the top of the Big Damn Hill around mile 8.5.
5k event will not have access to any aid stations so please be sure to bring any fluids and/or nutrition you will need.
