Duathlon
Find a Duathlon Event in California
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Sat, Jun 20, 2026
Castaic,
California (Castaic Lake Recreation Area)
| Sprint Triathlon : Swim 400 yards, Bike 6.7 miles, Run 3.1 miles |
| Sprint RunBikeRun : Run 3.1 miles, Bike 6.7 miles, Run 3.1 miles |
| Sprint SwimBike : Swim 400 yards, Bike 6.7 miles |
| Sprint SwimRun : Swim 400 yards, Run 3.1 miles |
| Sprint Swim : Swim 400 yards |
| 5K : Run 3.1 miles |
| Olympic Triathlon : Swim 1640 yards, Bike 23.3 miles, Run 6.2 miles |
| Olympic RunBikeRun : Run 3.1 miles, Bike 23.3 miles, Run 6.2 miles |
| Olympic SwimBike : Swim 1640 yards, Bike 23.3 miles |
| Olympic SwimRun : Swim 1640 yards, Run 6.2 miles |
| Olympic Swim : Swim 1640 yards |
| 10K : Run 6.2 miles |
| Youth Triathlon : Swim 400 yards, Bike 6.7 miles, Run 3 miles |
| Youth RunBikeRun : Run 3 miles, Bike 6.7 miles, Run 3 miles |
| Youth SwimBike : Swim 400 yards, Bike 6.7 miles |
| Youth SwimRun : Swim 400 yards, Run 3.1 miles |
| Youth Swim : Swim 400 yards |
| Youth 5K : Run 3.1 miles |
Sat, Jun 20, 2026
Sun, Jun 21, 2026
Lakeshore,
California
| Huntington Lake Triathlon - Intermediate Triathlon : Swim 1500 meters, Bike 24.9 miles, Run 6.2 miles |
| Huntington Lake Triathlon - Short Triathlon : Swim 750 meters, Bike 12.4 miles, Run 3.1 miles |
| Huntington Lake Triathlon - Short Aquabike : Swim 600Y, Bike 10.5Mi |
| Huntington Lake Triathlon - Short Duathlon : Run 3.2Mi, Bike 10.5Mi, Run 3.2Mi |
Sun, Jun 28, 2026
San Diego,
California (Spanish Landing Park)
| Sprint Triathlon : Swim 500 meters, Bike 12.4 miles, Run 3.5 miles |
| Olympic Triathlon : Swim 1000 meters, Bike 18.6 miles, Run 6.2 miles |
| Olympic Aquabike : Swim 1000 meters, Bike 18.6 miles |
| Olympic Aquathlon : Swim 1000 meters, Run 6.2 miles |
| Sprint Duathlon : Run 1 mile, Bike 12.4 miles, Run 3.5 miles |
| Sprint Aquabike : Swim 500 meters, Bike 12.4 miles |
| Sprint Aquathlon : Swim 500 meters, Run 3.5 miles |
| Kids Aquathlon : Distance Determined by Age |
| 3.5 Mile Run : Run 3.5 miles |
Sun, Jul 19, 2026
Hayward,
California
| East Bay Kids Triathlon - Competitive Triathlon : Swim 200 yards, Bike 6 miles, Run 2 miles |
| East Bay Kids Triathlon - Competitive Duathlon : Run 1 mile, Bike 6 miles, Run 1 mile |
| East Bay Kids Triathlon - Super Sprint Triathlon : Swim 200 yards, Bike 6 miles, Run 2 miles |
| East Bay Kids Triathlon - Non-Competitive Triathlon : Swim 200 yards, Bike 6 miles, Run 2 miles |
| East Bay Kids Triathlon - Non-Competitive Duathlon : Run 1 mile, Bike 6 miles, Run 1 mile |
Sun, Jul 26, 2026
Sun, Jul 26, 2026
Solana Beach,
California
| Solana Beach Triathlon, Duathlon, Aquabike, & Aquathlon - Short Triathlon : Swim 750 meters, Bike 12.4 miles, Run 3.1 miles |
| Solana Beach Triathlon, Duathlon, Aquabike, & Aquathlon - Short Aquabike : Swim 250M, Bike 9Mi |
| Solana Beach Triathlon, Duathlon, Aquabike, & Aquathlon - Short Duathlon : Run 1Mi, Bike 9Mi, Run 5KM |
Sun, Jul 26, 2026
Truckee,
California (Donner Lake)
| Half Iron Distance Triathlon : Swim 1.2 miles, Bike 56 miles, Run 13.1 miles |
| Half Iron Distance Aquabike : Swim 1.2 miles, Bike 56 miles |
| Olympic Triathlon : Swim 1500 meters, Bike 24.8 miles, Run 6.2 miles |
| Olympic Duathlon : Run 2 miles, Bike 24.8 miles, Run 6.5 miles |
| Olympic Aquabike : Swim 1500 meters, Bike 24.8 miles |
| Open Water Swim : Open Water Swim |
Sun, Aug 9, 2026
Santa Cruz,
California
| Tri Santa Cruz - Intermediate Duathlon : Run 3.1 miles, Bike 10 miles, Run 3.1 miles |
| Tri Santa Cruz - Short Triathlon : Swim 750 meters, Bike 12.4 miles, Run 3.1 miles |
| Tri Santa Cruz - Short Duathlon : Run 3.1 miles, Bike 10 miles, Run 3.1 miles |
| Tri Santa Cruz - Intermediate Triathlon : Swim 1500 meters, Bike 24.9 miles, Run 6.2 miles |
| Tri Santa Cruz - Intermediate Aquabike : Swim 1.5KM, Bike 40KM |
| Tri Santa Cruz - Short Aquabike : Swim 750M, Bike 20KM |
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