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Half Marathon Races in California (Page 5)
Browse 157+ upcoming half marathon races in California.
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Peace Officer Memorial Run
Oct 4, 2026
Modesto, CA
13.1M
3.1M
0.6M
83°
55°
1%
Redding Breakfast Lions Turtle Bay Run 2026
Oct 4, 2026
Redding, CA
13.1M
10K
2M
84°
54°
4%
Sunset & Cider Trail Races
Oct 10, 2026
Auburn, CA
31.1M
13M
5M
78°
51°
6%
Ruth Anderson Memorial Endurance Run
Oct 10, 2026
San Francisco, CA
50M
31.1M
4.5M
71°
56°
3%
Scarecrow 2.0
Oct 10, 2026
Exeter, CA
100M
6.2M
2M
0.5M
85°
52°
2%
2026 Humboldt Redwoods Marathon, Half Marathon, 5K
Oct 11, 2026
Honeydew, CA
26.2M
13.1M
3.1M
63°
48°
10%
Bizz Johnson
Oct 11, 2026
Susanville, CA
13.1M
10K
68°
34°
6%
Champion Mine Trail Race
Oct 11, 2026
Nevada City, CA
13.1M
3.1M
72°
48°
8%
Cahuilla Rez Ultra
Oct 17, 2026
Anza, CA
100M
24HR
12HR
6HR
1/2 Marathon
83°
56°
2%
California Gold Rush Trail Run - Fall
Oct 17, 2026
Coloma, CA
1/2 Marathon
9.3M
10K
5K
1M
75°
49°
7%
The Jackalope Lope
Oct 17, 2026
Redding, CA
31.1M
20M
8M
79°
50°
6%
SPACEROCK Trail Race
Oct 17, 2026
Agua Dulce, CA
13.9M
8.9M
10K
5K
81°
50°
1%
Heart of Cool Trail Run
Oct 17, 2026
Cool, CA
13.1M
6.2M
3.1M
75°
49°
7%
Back to the Future: 88 MPH Dash 5K, 10K & Half
Oct 17, 2026
Canoga Park, CA
13.1M
10K
5K
86°
53°
2%
Lake Hodges Trail Festival
Oct 17, 2026
San Diego, CA
316M
23M
15.6M
9.3M
6.4M
3.1M
1M
76°
62°
2%
MISSION INN RUN
Oct 18, 2026
Riverside, CA
500M
13.1M
10K
5K
83°
56°
1%
Fleet Feet Fall Classic - Trail October 18th, 2026
Oct 18, 2026
Chico, CA
13.1M
4M
73°
46°
9%
Witches Wave - Halloween Run 5K, 10K, and Half Marathon by Califlow Runs
Oct 18, 2026
Huntington Beach, CA
13.1M
6.2M
3.1M
79°
61°
1%
Weekend at Burney
Oct 22, 2026
Burney, CA
48HR
24HR
12HR
12HR
4.6M
68°
38°
11%
No Name Trail Races
Oct 24, 2026
Agoura Hills, CA
31.1M
1/2 Marathon
5K
85°
52°
2%
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