XTERRA WETSTUITS Mission Bay Triathlon

Join us at the birthplace of the sport for the XTERRA Wetsuits Mission Bay Triathlon!

2025 is the 38th annual XTERRA Wetsuits Mission Bay Triathlon benefitting Life Sports Foundation. San Diego is the Birthplace of 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. Every year competitors from around the country and from around the world, come to Mission Bay to celebrate the birthplace triathlon.  We invite you to become part of this wonderful legacy event and become part of history!

THIS IS TRIATHLONS’ 50TH BIRTHDAY CELEBRATION! – BE PART OF HISTORY

The event offers races for adults and kids,  from complete beginners to seasoned Professionals. There are many different races going on simultaneously, and while a traditional Triathlon is Swim / Bike / Run, KOZ Events, the organizer of the San Diego Triathlon Series,  offers more of a Multisport Race. Our race is very inclusive and we make triathlon accessible to as many people as possible. We have the traditional Swim/bike/ Run Triathlon but we offer so much more. If you do not like swimming, we have the Duathlon which is a Run/ Bike/ Run, if you don’t want to bike then choose the Aquathlon Swim / Run, or if you don’t want to run choose the Aquabike  Swim/Bike. We even have a Mini Distance Triathlon for beginners that want to try out the sport. We even offer free training groups every week to help people get started, train, and get connected to the San Diego Triathlon Community.

RACE OPTIONS & DISTANCES:

• International Triathlon: 1000m Swim – 31K Bike – 10K Run

• Sprint Triathlon: 500m Swim – 20K Bike – 5K Run

• Mini Triathlon (Youth & Adults): 200m Swim – 9K Bike – 2.4K Run

• Kids Triathlon: 100m Swim – 4K Bike – 1.2K Run

• Sprint Duathlon: 1 Mile Run – 20K Bike – 5K Run

• Aquabike (International): 1000m Swim – 31K Bike

• Aquabike (Sprint): 500m Swim – 20K Bike

• Aquathlon (Sprint): 500m Swim – 5K Run

• NEW 5K Run: Flat and fast course along Mission Bay!

WHAT YOU GET:

 Unique triathlon finisher medal

High-quality tech tee

Chip timing + online results

Flat, scenic course

Live music, food trucks & beer garden

Celebrate the season finale of the 2025 Triple Crown Series

Official 2025 USAT State Championship – Top 35% in each age group qualify for Nationals!