GutCheck Cape Cod

Step into the unknown for a true test of late-summer fitness at The Gut Check, an unpredictable adventure race in Cape Cod's Nickerson State Park. Held on Saturday, September 19, 2026, this unique event combines trail running, road cycling, and a water crossing (choose to swim or paddle) into a point-to-point course that changes every year. Competitors won't know the exact route until shortly before the 9:00 AM start, demanding sharp orienteering skills and the ability to think on your feet across 4-6 miles of running and 5-10 miles of cycling. Race solo or with a team of 2-4 friends, navigating through the 2,000-acre park's ponds and hills in 1.5 to 2 hours of scrambling action. More than a race, it's a thrilling, wits-and-fitness challenge for those tired of standard triathlons, all in support of the DreamDay camp for seriously ill children. This event consistently sells out, so mark your calendar for a uniquely demanding and generous-spirited Cape Cod adventure.