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Ultra Marathons found in California

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Ultra Marathons in California 2025 - 2026

The most comprehensive list of Ultra Marathons in and near California in 2025 - 2026. Find your perfect race!

Race Calendar: Ultra Marathons found in California

🚀Boosted

2025 Optimism Cal Tri Newport Dunes - 11.2.25

Newport Beach, California
02 Nov 25
$47.49 - $526.00
🚀Boosted

Lake Chabot Trail Run

Castro Valley, California
08 Nov 25
Free - $85.80
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Hobby Joggers Race Series

Temecula, California
01 Jan 25 - 31 Dec 25
Free - $27.50

Pinkathon 2025 Virtual and In-Person Challenge for Breast Cancer!

Any Place in the World!, California
01 May 25 - 31 Oct 25
Free - $27.50

San Lorenzo River Trail Run

Santa Cruz, California
12 Jul 25
Free - $85.80

Redwood (Summer) Trail Run

Oakland, California
16 Aug 25
Free - $85.80

SPASM Crystal Springs Trail Run

Woodside, California
31 Aug 25
Free - $85.80

Kids Walk

Loma Linda, California
01 Sep 25 - 30 Sep 25
Free - $16.90

Diablo Trail Run

Clayton, California
07 Sep 25
Free - $85.80

Shaver Lake Mile High Triathlon

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

JP's Backyard Ultra/Hike

Napa, California
27 Sep 25
Free

Ruth Anderson Memorial Endurance Run

San Francisco, California
11 Oct 25
Free

Lake Evans Triathlon, 5k & 10k

Bakersfield, California
12 Oct 25
$49.20 - $1,051.50

Lake Hodges Trail Festival

San Diego, California
18 Oct 25 - 19 Oct 25
$16.90 - $101.70

Cycle of Hope

Dublin, California
19 Oct 25
Free - $120.00

2025 Cal Tri LA - 10.19.25

Playa Del Rey, California
19 Oct 25
Free - $526.00

Finish The Ride and Finish The Run Santa Clarita

Valencia, California
26 Oct 25
$11.60 - $101.70

2025 Optimism Cal Tri Newport Dunes - 11.2.25

Newport Beach, California
02 Nov 25
$47.49 - $526.00

Lake Chabot Trail Run

Castro Valley, California
08 Nov 25
Free - $85.80

2025 Kaiser Permanente Get Fit Festival

Irvine, California
22 Nov 25
$35.00 - $240.00

San Joaquin River Trail 10k/25k/50k

Friant, California
06 Dec 25
$54.00 - $149.40

New Year's One Day

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

Avalon Benefit 50 Mile/50K Run

Avalon, California
10 Jan 26
$110.00 - $329.45

San Diego 50 & Trail Runs

Escondido, California
10 Jan 26
$16.90 - $165.30

9th Annual BRAVE Race 2026

Aliso Viejo, California
22 Feb 26
Free - $56.00

Bedrock Valley Trail Runs

Hemet, California
11 Apr 26 - 12 Apr 26
$16.90 - $112.30

Badwater Salton Sea, presented by Mount to Coast

Borrego Springs, California
18 Apr 26 - 19 Apr 26
$394.75

Mountains 2 Beach Marathon and Half

Ventura, California
18 Apr 26 - 19 Apr 26
$22.19 - $186.49

Shadow of the Giants 50k & 20k Run

Fish Camp, California
06 Jun 26
$85.80 - $138.80

100 miles to Auburn

Auburn, California
01 Jun 25 - 30 Jun 25
$48.70

Beer City Halfâ„¢ San Diego

San Diego, California
14 Feb 26
Free - $107.00

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

Los Angeles, California
28 Feb 26 - 15 Mar 26
$13.72 - $74.14

2026 Cal Tri Ventura - 5.3.26

Ventura, California
03 May 26
$26.29 - $526.00
Showing 1-31 of 31 results