Mission Bay, San Diego CA
Sunday, October 12th, 2025
Join us at the birthplace of the sport for the XTERRA WETSUITS Mission Bay Triathlon! In 1974, the first Mission Bay Triathlon was as a run-bike-swim-run event on Fiesta Island by the San Diego Track Club.
Free triathlon clinics and workout groups to get you prepared and connect you to the triathlon community - Click here for weekly workouts.
Benefiting Life Sports Foundation
All distances take place on Sunday, October 12, 2025.
Event Timeline:
Date: Friday, October 10th
Location: Road Runner Sports - 5553 Copley Drive, San Diego, CA 92111
Times Open: 3pm-6pm
Or:
Saturday, October 11th:
Sunday, October 12th – Race day:
Please arrive to the race site early, allowing time to walk or ride from parking lots to the transition area. Please see parking map on our website.
For a fee of $40, your race numbers, swim cap, timing chip, and t-shirt will be ready for your pick-up on race morning. Pre-race check-in is not mandatory, but must be done at the VIP check-in table. Entries must be received by October 6th. NO EXCEPTIONS!
Triathlon & Duathlon Age Divisions (M/F):
The race course and timeline can be changed at the discretion of the race organization. All distances are approximate by GPS measurements. The race can be altered, postponed, or canceled with no refunds due to weather, natural disturbances, police activity, acts of terrorism and threats of terrorism.
Refund Policy: Due to the number of race transfer requests and cancellations that occur in the weeks prior to a race, refunds will NOT be issued after a registration has taken place.
For more details and to register, visit the official race page.
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