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Duathlons found in California in September

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Duathlons in California in September 2025

Find A Race is the US's favourite event listings site. Check out our list of September 2025 Duathlons in California below.

Race Calendar: Duathlons found in September

Shaver Lake Mile High Triathlon

Shaver Lake, California
14 Sep 25
$49.20 - $1,051.50

Pacific Coast Triathlon

Laguna Beach, California
21 Sep 25
$88.40 - $261.20
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