September Multisport Events in California on Weekends
1. Bear Valley Triathlon
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Past DateSep 1, 2024Sunday
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sprint triathlon
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Bear Valley, CA
Alpine County, CA
2. Ironman 70.3 Santa Cruz
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Sep 7, 2025Sunday
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half triathlon
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Santa Cruz, CA
Santa Cruz County, CA
3. Cal Tri Folsom
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Past DateSep 8, 2024Sunday
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olympic, sprint triathlon | olympic, sprint triathlon relay | olympic, sprint duathlon | 10K, 5K run
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Folsom, CA
Sacramento County, CA
4. Gravel X Triathlon
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Sep 13, 2025Saturday
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olympic, sprint offroad triathlon
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Granite Bay, CA
Placer County, CA
5. San Diego Kids Splash & Dash
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Sep 14, 2025Sunday
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youth aquathon
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San Diego, CA
San Diego County, CA
6. San Diego Triathlon Classic
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Past DateSep 14, 2024Saturday
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olympic, sprint triathlon | 5K run
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San Diego, CA
San Diego County, CA
7. Shaver Lake Triathlon
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Sep 14, 2025Sunday
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olympic, sprint triathlon | olympic, sprint triathlon relay | 10K, 5K run
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Shaver Lake, CA
Fresno County, CA
8. Pacific Coast Triathlon
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Past DateSep 15, 2024Sunday
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sprint triathlon | sprint duathlon
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Laguna Beach, CA
Orange County, CA
9. Albany Community Triathlon
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Past DateSep 22, 2024Sunday
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supersprint triathlon | youth triathlon
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Albany, CA
Alameda County, CA
10. Santa Cruz Triathlon
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Past DateSep 22, 2024Sunday
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olympic, sprint triathlon
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Santa Cruz, CA
Santa Cruz County, CA
11. Apple Valley Fall Reverse Triathlon
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Sep 27, 2025Saturday
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sprint triathlon | 5K run
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Apple Valley, CA
San Bernardino County, CA
12. DJFE Triathlon Race Series
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Past DateSep 29, 2024Sunday
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sprint, supersprint triathlon | sprint triathlon relay | youth triathlon
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Santa Rosa, CA
Sonoma County, CA
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.