Cal Tri Castaic Lake

JUN
20
2026
Join the 2026 Cal Tri at Castaic Lagoon on June 20 for a full day of triathlon fun with Sprint and Olympic distances plus youth races, many free under the Cal Tri Kids Race Free program. Swim, bike, and run courses suit all levels.
Sat 20 Jun 2026
Sprint Swim (400 Yards) Youth Sprint Swim (400 Ya... Olympic Swim (1640 Yards) Olympic Runbikerun (5km R...

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Event overview

The 2026 Cal Tri Castaic Lake event is set for June 20, 2026 at Castaic Lagoon, 32132 Castaic Lake Drive, Castaic, California 91384. The program includes 18 event options across Olympic, Sprint, and Youth Sprint distances. Adult events are open to ages 18 and older. Youth events are open to ages 7 to 17 and are offered free at many races under the Cal Tri Kids Race Free initiative. Parking at Castaic Lagoon is listed as $12. Average conditions noted are an air temperature range of 56 F to 87 F and an average water temperature of 82 F; wetsuit use is indicated as legal.

Race options and distances

  • Sprint RunBikeRun: 5 km run, 15 km bike, 5 km run
  • Olympic RunBikeRun: 5 km run, 40 km bike, 10 km run
  • Sprint Swim: 400 yards
  • Olympic Swim: 1640 yards
  • Sprint 5K run
  • Olympic 10K run
  • Sprint and Olympic Triathlon, SwimBike, SwimRun, plus Youth Sprint versions

Notes

Triathlon events combine swim, bike, and run. The event information indicates that bike distances may vary by race and that course maps are available for detailed routing. Visit the organization's website for the most recent information.

10 km
10k
5 km
5 km
Olympic Runbikerun (5km Run, 40km Bike, 10km Run)
5 km
Sprint Runbikerun (5km Run, 15km Bike, 5km Run)
5 km
Youth 5k
5 km
Youth Sprint Runbikerun (5km Run, 15km Bike, 5km Run)
Olympic Swim (1640 Yards)
Sprint Swim (400 Yards)
Youth Sprint Swim (400 Yards)
Olympic Swimbike
Olympic Swimrun
Olympic Triathlon
Sprint Swimbike
Sprint Swimrun
Sprint Triathlon
Youth Sprint Swimbike
Youth Sprint Swimrun
Youth Sprint Triathlon