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Ultra Marathons found in California in January

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Ultra Marathons in California in January 2026

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

Race Calendar: Ultra Marathons found in January

🚀Boosted

Avalon Benefit 50 Mile/50K Run

Avalon, California
Sat 10 Jan 26
$131.00 - $367.25
🚀Boosted

New Year's One Day

San Jose, California
Wed 31 Dec 25 - Thu 01 Jan 26
$85.80 - $197.10
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New Year's One Day

San Jose, California
Wed 31 Dec 25 - Thu 01 Jan 26
$85.80 - $197.10

San Diego 50 & Trail Runs

Escondido, California
Sat 10 Jan 26
$16.90 - $165.30

Avalon Benefit 50 Mile/50K Run

Avalon, California
Sat 10 Jan 26
$131.00 - $367.25

Crystal Springs Trail Run

Woodside, California
Sun 18 Jan 26
Free - $85.80
Showing 1-4 of 4 results