Altadena
Triathlon Calendar near Altadena 2026-2027
Monthly updates for Altadena
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Altadena for 2026-2027! We've gathered 5 exciting races in the area. Check out our detailed list below to find your next local race.
October 2026
Cal Tri LA at Dockweiler State Beach offers 18 race options including Olympic and Sprint formats plus free youth events along the Pacific coast.
November 2026
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.
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.
August 2027
Late August event at Dockweiler Beach with in person and virtual 5K and 13K races, bike rides, duathlons, a costume contest, and fundraising for a breast cancer charity.
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.
Monthly updates for Altadena
Get new running races (and updates) in your inbox every month.