Rexburg Rush Triathlon

The REXBURG RUSH MULTI-SPORT EVENT takes place on Saturday, September 19th, 2026, at Wakeside Lake in Rexburg, Idaho, and serves as the final and celebratory race of the 2026 Tri Peaks Epic Events season. Formerly known as the Rexburg Rush Triathlon, this event has expanded into a multi-sport finale, welcoming first-time racers, returning athletes, and Quadfecta finishers to close out the season in a fun, supportive, and high-energy environment. A Perfect Way to Finish (or Start) Your Season Whether this is: Your first-ever race Your only race of the season Or the final piece of your Quadfecta journey …the REXBURG RUSH is designed to be approachable, encouraging, and rewarding for all participants. At all Tri Peaks Epic Events, you can expect a clearly marked course, friendly volunteers, and an encouraging race-day atmosphere that helps you feel confident from start to finish. Choose the race that fits you best: Sprint Triathlon – A great first triathlon or season-ending race Olympic Triathlon – A strong final challenge of the year Sprint Duathlon – Run–Bike–Run (no swim required) Olympic Duathlon – A longer endurance option – Run-Bike-Run (no swim required) 5K Run – Perfect for beginners, walkers, and families 10K Run – Finish the season fast and strong All disciplines take place at Wakeside Lake, located on the south end of Rexburg near BYU–Idaho, making for a smooth and spectator-friendly race venue. The Grand Finale of the 2026 QUADFECTA This race is the fourth and final event in the Tri Peaks Epic Events QUADFECTA series. Special Quadfecta Gifts & Recognition All athletes who complete the 2026 Quadfecta will receive a special gift and recognition at the awards ceremony following the race. This is a moment to celebrate: Consistency Commitment Community And an entire season of accomplishments Stick around after the races to cheer on fellow athletes and celebrate Quadfecta finishers together. Beginner-Friendly & Community Focused The REXBURG RUSH is known for: A welcoming race atmosphere Clear course layout Supportive volunteers A positive, end-of-season celebration vibe If you’ve been thinking about trying a triathlon or multi-sport race, this is a fantastic place to start—and an even better place to finish.