Fullerton
Triathlon Calendar near Fullerton 2026-2027
Monthly updates for Fullerton
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Fullerton for 2026-2027! We've gathered 8 exciting races in the area. Check out our detailed list below to find your next local race.
November 2026
Cal Tri Newport Dunes on November 1, 2026 is the longest running triathlon at Newport Dunes offering 12 sprint and Olympic event options.
Two triathlon options in Long Beach on E Ocean Blvd, featuring open-water swims, out-and-back bike courses open to traffic, and stocked aid stations; registration includes timing, a shirt, medal, and post race food.
February 2027
Pasadena Triathlon at the Rose Bowl on Feb 7, 2027 features reverse and junior triathlons, a 5K, duathlon and relay options, with fundraising for Angel City Sports.
March 2027
Experience an early season triathlon in Long Beach featuring a calm bay swim and scenic oceanfront paths. Choose from a 70.4 mile long course or a sprint distance with individual and relay options.
April 2027
A multisport festival at Lake Mission Viejo on April 25, 2027 offering triathlon, duathlon, aquabike, a 5K, mini sprint and kids races with USAT sanctioning.
Monthly updates for Fullerton
Get new running races (and updates) in your inbox every month.
September 2027
Ocean swim and beachfront bike in Long Beach California on September 19, 2027 with SuperSprint, Sprint, and Olympic distances and fundraising for Children’s Hospital Los Angeles.
Multisport race at Crystal Cove State Park offering Sprint and Olympic triathlons, duathlons, aquabikes, relay options, and a 5K beach and trail run in Orange County, CA.
October 2027
A multisport event at Dockweiler State Beach on 2027-10-03 with 18 options including sprint, Olympic, youth swim and run distances.