Lake Forest
Triathlon Calendar near Lake Forest 2026-2027
Monthly updates for Lake Forest
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Lake Forest for 2026-2027! We've gathered 4 exciting races in the area. Check out our detailed list below to find your next local race.
November 2026
A multisport race day at Newport Dunes offering twelve sprint and Olympic events, held at the same site since 1978 and serving as the Cal Tri Events National Championship.
April 2027
A multi-event day at Lake Perris on April 11, 2027 with Olympic and Sprint triathlon, swim, run and run-bike-run options, plus camping and on-site parking.
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.
September 2027
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.
Monthly updates for Lake Forest
Get new running races (and updates) in your inbox every month.