Return to Triathlon’s Roots

Start your race season where triathlons originated in beautiful southern California with the beach breeze and chill vibes. IRONMAN 70.3 Oceanside is the first race on the North American circuit with a stacked pro field that is sure to test your winter training. The rolling hills and beautiful scenery will keep you going from start to finish.

IRONMAN 70.3 Oceanside offers slots to the IRONMAN 70.3 World Championship.