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Ultra Marathons found in California
View all ↓Ultra Marathons in California 2025 - 2026
The most comprehensive list of Ultra Marathons in and near California in 2025 - 2026. Find your perfect race!
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Race Calendar: Ultra Marathons found in California
πBoosted
Kids Walk
Loma Linda, California
01 Sep 25 - 30 Sep 25
Free - $16.90
πBoosted
Mountains 2 Beach Marathon and Half
Ventura, California
18 Apr 26 - 19 Apr 26
$22.19 - $149.39
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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
Shadow of the Giants 50k & 20k Run
Fish Camp, California
07 Jun 25
$96.40 - $154.70
Holcomb Valley Trail Run
Big Bear Lake, San Bernardino
14 Jun 25
Huntington Lake Triathlon, 5k & 10k
Lakeshore, California
22 Jun 25
$49.20 - $1,051.50
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
Como La Flor 50 Mile Challenge
Livermore, California
10 May 25 - 15 Jun 25
$32.80 - $54.00
100 miles to Auburn
Auburn, California
01 Jun 25 - 30 Jun 25
$48.70
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
Mountains 2 Beach Marathon and Half
Ventura, California
18 Apr 26 - 19 Apr 26
$22.19 - $149.39
Badwater Salton Sea, presented by Mount to Coast
Borrego Springs, California
18 Apr 26 - 19 Apr 26
$394.75
2026 Cal Tri Ventura - 5.3.26
Ventura, California
03 May 26
$26.29 - $526.00
Showing 1-33 of 33 results