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.  This is an ON Road Triathlon.

This year, competitors from around the country will return to Mission Bay to celebrate the triathlon.  

Race Features

FIESTA ISLAND BIKE LOOPTechnical T-Shirt for adults & kidsAwesome Finisher Medals Beer GardenLIVE BandOnline ResultsAwards 3 Deep Course Info Presentations on Saturday at the expo please attendPoints for San Diego Triathlon Series for all distances!!Race Photos Available On-LineSWIM BUDDIES - For new Triathletes that need extra encouragement.

Benefiting Life Sports Foundation

 Distances - Take place on Sunday, October 10, 2021

International Triathlon (13 yrs & older): 1000m swim - 38k bike - 9k run 

International Triathlon Distance limited to 300 participants! The international swim will be the first 3 waves only.

Sprint Triathlon (13 yrs & older): 500m swim - 19k bike - 5k run

Sprint Duathlon (13 yrs & older): 1-mile run - 19k bike - 5k run

Sprint Aquabike (13 yrs & older): 500m swim - 19k bike (Your finish time is at the transition area after completing the bike portion, then head over to the finish line to return your timing chip and join the party!)

Sprint Aquathlon (13 yrs & older): 500m swim & 5K Run

Mini Sprint Triathlon (11 yrs & older): 200m swim - 4 mile bike - 1.5 mile run

Itsy Bitsy Triathlon (7-10 yrs old): 100m swim - 2 mile bike - 0.75 mile run



  • Occurs Sunday, October 10th, 2021 @ 6:00 am – 12:00 pm


Bonita Cove Park

1100 West Mission Bay Drive
San Diego, CA 92109

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