Cal Tri Lake Perris - 4.5.26

2026 Cal Tri Lake Perris - 4.12.26. This race is enclosed within an 8,200-acre rugged playground close to several major population centers including Anaheim (55 miles), LA (70 miles) and San Diego (90 miles). 18 EVENT OPTIONS. 6 Olympic distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 1640 Yard Swim & 10K Run), 6 Sprint distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run) and 6 Youth Sprint distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 400 yard Swim & 5K Run). Triathlon = swim + bike + run. Typically, the swim and run distances are standard but the bike distance varies from race to race. Check out the course maps for more detailed information.TO DO. Lake Perris. Mission Inn Museum. March Field Air Museum.AIRPORT. Ontario (ONT)AIR TEMPERATURE (AVG). 53 F / 76 FWATER TEMPERATURE (AVG). 62 F. Wetsuit recommended. Use the 20% CALTRI2025 discount code at blueseventy. Note: Fusion wetsuits not eligible for discount.