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Ultra Marathons found in California in Winter

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Ultra Marathons in California in Winter 2025/26

Find A Race is the US's favourite event listings site. Check out our list of Winter 2025/26 Ultra Marathons in California below.

Race Calendar: Ultra Marathons found in Winter

๐Ÿš€Boosted

Avalon Benefit 50 Mile/50K Run

Avalon, California
Sat 10 Jan 26
$131.00 - $367.25
๐Ÿš€Boosted

Crystal Springs Trail Run

Woodside, California
Sun 18 Jan 26
Free - $85.80
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San Joaquin River Trail 10k/25k/50k

Friant, California
Sat 06 Dec 25
$54.00 - $149.40

New Year's One Day

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

Avalon Benefit 50 Mile/50K Run

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

San Diego 50 & Trail Runs

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

Crystal Springs Trail Run

Woodside, California
Sun 18 Jan 26
Free - $85.80

Golden Gate Trail Run

Sausalito, California
Sat 07 Feb 26
Free - $85.80

Beer City Halfโ„ข San Diego

San Diego, California
Sat 14 Feb 26
Free - $107.00

Montara Mountain Trail Run

Pacifica, California
Sat 21 Feb 26
Free - $85.80

Tahoe to Malibu Annual Challenge

Anywhere, California
Mon 01 Jan 24 - Wed 31 Dec 25
$53.75
Showing 1-9 of 9 results