Aug 15, 2026 · 8:15 AM · Oakland, CA
Redwood (Summer) Trail Run
Half MarathonMarathonUltra
- Price
- Free-$96.40
Half Marathons in California
Every upcoming Half Marathon race we know about in California. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Where
When
Showing 24+ of 272 races · loading the full list…
Aug 15, 2026 · 7:30 AM · Los Angeles, CA
Bagel Run 5K/10K/13.1 LOS ANGELES
1M5K10KHalf Marathon
- Price
- $32.80-$54
Aug 15, 2026 · 7:30 AM · Los Angeles, CA
Run for PB& J 5K/10K/13.1 LOS ANGELES
1M5K10KHalf Marathon
- Price
- $32.80-$54
Aug 15, 2026 · 7:30 AM · San Diego, CA
Run for PB& J 5K/10K/13.1 SAN DIEGO
1M5K10KHalf Marathon
- Price
- $32.80-$54
Aug 15, 2026 · 7:30 AM · San Francisco, CA
Run for PB& J 5K/10K/13.1 SAN FRANCISCO
1M5K10KHalf Marathon
- Price
- $32.80-$69.90
Aug 15, 2026 · 7:30 AM · San Diego, CA
Bagel Run 5K/10K/13.1 SAN DIEGO
1M5K10KHalf Marathon
- Price
- $32.80-$54
Aug 15, 2026 · 7:30 AM · San Francisco, CA
Bagel Run 5K/10K/13.1 SAN FRANCISCO
1M5K10KHalf Marathon
- Price
- $32.80-$69.90
Aug 16, 2026 · 8:00 AM · Long Beach, CA
Alien Invasion -5K 10K & Half Marathon - Health is Wealth Expo
5K10KHalf MarathonCertified course · per organizer
- Price
- $52.93-$70.95
Aug 23, 2026 · 7:30 AM · Long Beach, CA
One Love Run – 5K, 10K, 10M, and Half Marathon
5K10K10MHalf Marathon
- Price
- $29.50-$45
Aug 23, 2026 · 8:00 AM · Long Beach, CA
Californian Dreamin 5K, 10K, & Half Marathon by Califlow Runs
5K10KHalf MarathonCertified course · per organizer
- Price
- $52.93-$63.53
Aug 29, 2026 · 8:45 AM · Woodside, CA
SPASM Crystal Springs Trail Run
10KHalf MarathonMarathonUltra
- Price
- Free-$96.40
Aug 29, 2026 · 7:30 AM · Los Angeles, CA
Sloth Run 5K/10K/13.1 LOS ANGELES
1M5K10KHalf Marathon
- Price
- $32.80-$64.60
Aug 29, 2026 · 7:30 AM · San Diego, CA
Sloth Run 5K/10K/13.1 SAN DIEGO
1M5K10KHalf Marathon
- Price
- $32.80-$64.60
Aug 29, 2026 · 7:30 AM · San Francisco, CA
Sloth Run 5K/10K/13.1 SAN FRANCISCO
1M5K10KHalf Marathon
- Price
- $32.80-$69.90
Aug 29, 2026 · 7:30 AM · Los Angeles, CA
Run for Breast Cancer 5K/10K/13.1 LOS ANGELES
1M5K10KHalf Marathon
- Price
- $32.80-$64.60
Aug 29, 2026 · 7:30 AM · San Diego, CA
Run for Breast Cancer 5K/10K/13.1 SAN DIEGO
1M5K10KHalf Marathon
- Price
- $32.80-$64.60
Aug 29, 2026 · 7:30 AM · San Francisco, CA
Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO
1M5K10KHalf Marathon
- Price
- $32.80-$69.90
Aug 29, 2026 · 6:30 PM · Long Beach, CA
Night of the Running Dead 5K, 10K, 1 Miler, Half Marathon SummerWeen Series by Califlow Runs
1M5K10KHalf Marathonflat and fastWalker-friendly · per organizer
- Price
- $38.09-$69.89
Sep 5, 2026 · 6:00 AM · Bakersfield, CA
FIESTA HALF MARATHON & 10K - BAKERSFIELD
10KHalf Marathonflat and fast
- Price
- Free-$89.48
Sep 6, 2026 · 8:15 AM · Clayton, CA
Diablo Trail Run
10MHalf MarathonMarathonUltraflat and fast
- Price
- Free-$96.40
Sep 6, 2026 · 7:00 AM · Fresno, CA
FIESTA HALF MARATHON, 10K & MILE RUN - FRESNO
1M10KHalf Marathon
- Price
- Free-$79.94
Sep 6, 2026 · 7:30 AM · Long Beach, CA
Pirates Plunder – 5K, 10K, 10-miler, and Half Marathon
5K10K10MHalf Marathon
- Price
- $32.27-$48.70
Sep 6, 2026 · 7:00 AM · Sunnyvale, CA
Vibha Bay Area Dream Mile 2026
5K10KHalf Marathon
- Price
- $38.10-$75.20
Sep 12, 2026 · 7:00 AM · Bloomfield, CA
The Running Fence Run: A Run of Freedom- Celebrating Christo's 1976 "Running Fence” art project
5K10KHalf MarathonMarathon
- Price
- $45-$160
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