OC Triathlon/Duathlon

Mission Viejo
$15 OFF
Sunday, October 10, 2021
Register Now!

Use the code “RG15” to take $15 OFF the OC Tri and OC Duathlon.

Come enjoy the beauty of Orange County California.  Triathletes and Relays begin with a 1500 meter swim in the calm waters of Lake Mission Viejo.  After leaving transition, bike 40 kilometers up and down scenic Santiago Canyon, finish the bike ride just outside of Mission Viejo at transition 2.  From there, you’ll begin your 10K run back to your friends and family at the Lake.  The event also features a Duathlon, which subs out the 1500 meter swim for a 2K run, an aquabike, which skips the run, and a 5K run that starts and finishes at the Lake.

Each participant receives a premium souvenir shirt or sweatshirt, a finisher medal and a meal ticket.

Treat yourself to a VIP experience and upgrade your registration!

Sprint Triathlon

  • 750M Swim
  • 20K Bike
  • 5K Run

Olympic Triathlon

  • 1.5K Swim
  • 40K Bike
  • 10K Run


  • 2K Run
  • 40K Bike
  • 10K Run

Sprint Relay/Olympic Relay

  • 750M Swim/1.5K Swim
  • 20K Bike/40K Bike
  • 5K/10K Run

5K Run

  • 3.1 Miles

Splash and Dash

  • Open to 7-10 year olds