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Ultra Marathons found in California in March

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Ultra Marathons in California in March 2026

Find A Race is the US's favourite event listings site. Check out our list of March 2026 Ultra Marathons in California below.

Race Calendar: Ultra Marathons found in March

🚀Boosted

MS Run the US Ultra Relay

Santa Monica, California
Mon 23 Mar 26
Free
🚀Boosted

L.A. CHINATOWN FIRECRACKER 5K/10K/KIDDIE/PAW'ER DOG RUN/WALK & BIKE RIDE

Los Angeles, California
Sat 28 Feb 26 - Sun 01 Mar 26
$13.00 - $81.00
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L.A. CHINATOWN FIRECRACKER 5K/10K/KIDDIE/PAW'ER DOG RUN/WALK & BIKE RIDE

Los Angeles, California
Sat 28 Feb 26 - Sun 01 Mar 26
$13.00 - $81.00

Redwood (Spring) Trail Run

Oakland, California
Sat 21 Mar 26
Free - $85.80

VALENCIA Trail Race

Valencia, California
Sat 21 Mar 26
$91.10 - $154.70

MS Run the US Ultra Relay

Santa Monica, California
Mon 23 Mar 26
Free
Showing 1-4 of 4 results