2021 XTERRA WETSUITS Mission Bay Triathlon, Duathlon, Aquabike & Youth Races

Sunday 10th October 2021

Bonita Cove Park: Mission Bay, San Diego, United States

Triathlon, Duathlon, Distance running, Olympic/International, Sprint


  • Triathlon-International - Individual Age group/open
  • Triathlon-Sprint - Individual Age group/open
  • Duathlon-Sprint - Individual Age group/open
  • Aquabike-Sprint - Individual Age group/open
  • Aquathlon - Sprint - Individual Age group/open
  • Triathlon-Mini Sprint - Individual Age group/open
  • Triathlon-Itsy Bitsy - Individual Age group/open
  • Triathlon-International - Elite/Pro Division - Individual Age group/open
  • Triathlon-Sprint - Elite/Pro Division - Individual Age group/open
  • Triathlon-International - Duo Racer (Challenged Only) - Group-registration team
  • Triathlon-Sprint - Duo Racer (Challenged Only) - Group-registration team
  • Triathlon-Mini Sprint - Duo Racer (Challenged Only) - Group-registration team Age group/open
  • Duathlon-Sprint - Duo Racer (Challenged Only) - Group-registration team Age group/open


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

  • Technical T-Shirt for adults & kids
  • Awesome Finisher Medals 
  • Beer Garden
  • LIVE Band
  • Online Results
  • Awards 3 Deep 
  • Course Info Presentations on Saturday at the expo please attend
  • Points for San Diego Triathlon Series for all distances!!
  • Race Photos Available On-Line
  • SWIM 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


Event details and schedule

Event Timeline:  

Saturday, October 9th 

10:00 AM       Registration opens / Expo opens at Bonita Cove

11:00 AM       Course Talk 1

1:00 PM         Course Talk 2

2:00 PM          Kids Course Talk - Attention Parents: Coach Judi's Kids Course Talk Sat. 2p is HIGHLY RECOMMENDED if your child did not participate in the Kids Mission Bay Prerace Clinic

3:00 PM         Expo Closed

 Sunday, October 10th – Race day

Please arrive to the Race site early and allow time to walk or ride from parking lots to the transition area. please see the parking Map on our website 

5:30 AM         Late check-in opens, Transition area opens,

Body marking begins

6:35 AM         Transition area closed – Please be all set up before this time

6:40 AM         Race Starts

9:30 AM         Transition area open to remove bikes and equipment

10:15 AM       Awards presentation (approximately)

11:00 AM       Transition area closes (all bikes should be removed)


VIP Option

For a fee of $30 -  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, you will check-in on race morning at the VIP check-in table. Pick-up is from 5:45 am-6:45 am. You will then continue on to the transition zone to be body marked. Please plan your time accordingly. VIP athletes have reserved bike racks with their names in the transition area. Entries must be received by Sep 22nd. NO EXCEPTIONS!  


Race Divisions 

Triathlon & Duathlon 
Age Divisions (M/F):
  • 7-8 (Itsy Bitsy only)
  • 9-10 (Itsy Bitsy only)
  • 11-12 (Mini only)
  • 13-15 (Mini & Sprint only)
  • 16-19
  • 20-24
  • 25-29
  • 30-34
  • 35-39
  • 40-44
  • 45-49
  • 50-54
  • 55-59
  • 60-64
  • 65-69
  • 70-74
  • 75-79
  • 80-84
  • 85 +

Special Divisions for Triathlon Only:

  • Elite
  • Challenged
  • Military
  • Clydesdale (males 220lbs+)
  • Athena (ladies 165lbs+)
  • Clydesdale age 40+ (males 220lbs+)
  • Athena age 40+  (ladies 165lbs+)

Aquabike & Aquathlon

  • Age 49 and under - Top 3 Male & Female
  • Age 50+ - Top 3 Male & Female




Wetsuits- Purchase a wetsuit from our official wetsuit sponsor, XTERRA WETSUITS! Special San Diego Triathlon Series discount! Wetsuits 60% off! Check them out HERE!

Use code: R-KOZ at Checkout.


Bikes & Bike Rentals

Bike rentals are available from our bike shop sponsor Pulse Endurance Sports 

South Bay-

1020 - A2 Tierra Del Rey
Chula Vista, CA 91910


Disclaimer & Refund Policy

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 cancelled 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 we have the following policy that is in accordance with USAT Policy.  Refunds will NOT be issued after a registration has taken place. Considerable effort goes into producing an event and funds are expended and applied in good faith based on a registration.  If you would like to change your registration from one distance to another, you will be charged for the difference in price at the time of the change.

Organised by

KOZ Events

PO Box 1210, Poway

Phone: 8582681250

Event Images