Lake Forest close

Triathlon Calendar near Lake Forest 2026-2027

Header image

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.

April 2027
Apr
11
Su

Cal Tri Lake Perris

Triathlon Sprint 5 15 5 km Olympic 5 39 10 km
A multi-option triathlon day at Lake Perris State Recreation Area featuring sprint and Olympic swim, bike, run, and RunBikeRun events.
Apr
25
Su

Orange County Multi-Sport Festival

Multisport Super sprint 300 m 5 2.5 km Sprint 750 m 20 km Sprint 750 m 20 5 km Olympic 1500 m 40 km
A multi-discipline race day at Lake Mission Viejo featuring Olympic and sprint triathlons, duathlon, aquabike, a 5K and youth races on varied lake and canyon courses.
September 2027
Sep
12
Su

Pacific Coast Triathlon

Trail Run Triathlon Duathlon Sprint 0.5 12 mi Sprint 0.5 12 3 mi Sprint 0.5 12 3 mi Olympic 1500 m 40 km
A multisport event at Crystal Cove State Park featuring ocean swim, Pacific Coast Highway bike laps, coastal trail run and a 5K on September 12, 2027.
November 2027
Nov
7
Su

Cal Tri Newport Dunes

Triathlon Duathlon Aquathlon Multisport Sprint 400 m 5 km Olympic 0.93 mi 10 km Sprint 400 m 9 mi Sprint 5 13 5 km
A multi-discipline race day at Newport Dunes with 12 sprint and Olympic event options across swim, bike and run formats.
Monthly updates for Lake Forest

Get new running races (and updates) in your inbox every month.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.