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Races in California - December 2026

Browse 34+ upcoming races in California for December 2026.

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Races in California - December 2026

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The Krampus Cross Country 5K, 10K, or Naughty Nine Miler (LIVE or VIRTUAL)!

Dec 4, 2026
San Francisco, CA
10K5K
59°
48°
15%

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

Dec 5, 2026
Friant, CA
31.1M15.5M
55°
37°
12%

Midway Shelter Winter Run / Walk ~ 5k, 10k and Kids Run

Dec 5, 2026
Alameda, CA
6.2M3.1M
61°
46°
15%

16th Annual Reindeer Run/Walk

Dec 5, 2026
American Canyon, CA
6.2M3.1M
59°
37°
11%

South Pasadena Tiger Run 5K/10K

Dec 5, 2026
South Pasadena, CA
10K5K0.6M
69°
46°
10%

Anza Borrego Cuyamaca 50 Mile Run

Dec 5, 2026
Julian, CA
50M
54°
40°
13%

Four Corners Quad Keyah

Dec 5, 2026
Sonoma, CA
26.2M13.1M5K2M
59°
39°
15%

ZombieRunner Quarry Lakes

Dec 5, 2026
Fremont, CA
13.1M10K5K2M
59°
43°
9%

Island View - Endurance Run

Dec 5, 2026
Goleta, CA
100M62.1M31.1M15.5M7.5M
65°
41°
8%

Merry Miles- 5K, 10K, and Half Marathon by Califlow Runs

Dec 6, 2026
Long Beach, CA
13.1M6.2M3.1M
68°
48°
8%

LUCHA RUN

Dec 6, 2026
Fresno, CA
3.72M2M
58°
40°
8%

Santa Runs Griffith Park

Dec 6, 2026
Los Angeles, CA
10K5K0.6M
68°
49°
8%

California International Marathon

Dec 6, 2026
Sacramento, CA
Marathon
0°
0°
0%

Pulp Fiction: Royale with Speed 5K, 10K & 13.1

Dec 12, 2026
Canoga Park, CA
13.1M10K5K
69°
41°
7%

Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5K

Dec 12, 2026
Oxnard, CA
13.1M6.55M3.1M3M0.6M
65°
47°
7%

Santa Claus For A Cause 5K/10K

Dec 12, 2026
Huntington Beach, CA
6.2M3.1M
67°
48°
8%

12K's of Christmas

Dec 12, 2026
Redding, CA
7.5M2M
56°
37°
20%

‘A CHARLIE BROWN CHRISTMAS 5K/10K’ (Los Angeles, CA)

Dec 12, 2026
Los Angeles, CA
6.2M3.1M0.6M
67°
48°
9%

Winter Runderland 5K, 10K, & Half Marathon. Kids Dash

Dec 12, 2026
Long Beach, CA
13.1M6.2M3.1M
67°
47°
9%

Crystal Cove Trail Run

Dec 12, 2026
Newport Beach, CA
9.3M3.7M
67°
48°
8%
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