2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K

Get ready for an epic challenge at the XTERRA WETSUITS Mission Bay Triathlon, the third event of the San Diego Triathlon Series and the Triple Crown of Triathlon! This isn't just any race; it's your chance to become a part of history in the sport's birthplace, all while vying for the prestigious title of California State Champion – regardless of whether you're hitting the Olympic or Sprint distance, or joining the high school and club ranks.

You'll swim, bike, and run through San Diego's iconic Mission Bay on Sunday, October 11, 2026, and if you grab that top spot, strut your stuff in the exclusive State Champion Jersey. And don't forget, finishing strong could also secure your qualification for Nationals in 2026 and 2027! Whether you're a seasoned pro or a newcomer getting your feet wet with our inclusive range of events, including duathlons and aquabikes, this is your moment. Be part of the legacy - sign up and bring your best to Mission Bay!