Half marathons in California
77 upcoming half marathons in California. Filter by date, exact distance, or elevation.
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This calendar in numbers
This calendar currently lists 77 upcoming events, from Sep 26, 2026 to Jun 6, 2027. November is the busiest month, with 19 events scheduled. Events are spread across 50 different locations; San Diego hosts the most (10).
Browse all 77 events by date
September 2026
- Oktoberfest Run 5K/10K/13.1 - Las Vegas Sep 26
- Oktoberfest Run 5K/10K/13.1 - Los Angeles Sep 26
- Oktoberfest Run 5K/10K/13.1 - Sacramento Sep 26
- Oktoberfest Run 5K/10K/13.1 - San Diego Sep 26
- Oktoberfest Run 5K/10K/13.1 - San Francisco Sep 26
- Urban Cow Half Marathon and 5K Sep 26
- Take Me to Your Pizza : Alien Dash 5K. 10K. Half Marathon Sponsored by Domino's Pizza Sep 27
- Vegas Half 5k 10k Sep 27
October 2026
- 2026 Rock n Roll San Jose Half Marathon Oct 3
- Pacific Beach Half Marathon & 5K Oct 3
- Rock 'n' Roll San Jose Oct 3
- 2026 Rock 'n' Roll San Jose Half Marathon Oct 4
- Napa Half Marathon Oct 4
- Peace Officer Memorial Run Oct 4
- 2XU Long Beach Half Marathon 2026 Oct 11
- Bizz Johnson Trail Marathon Oct 11
- Clo-Cow Half Marathon and 5K Oct 11
- The Original Las Vegas Marathon Oct 11
- Nevada Half Marathon Oct 16
- Emerald Bay Half Marathon Oct 18
- Jeepers Creepers Marathon Oct 18
- Mission Inn Run Oct 18
- Malibu Moves Oct 24
- RunThrough USA Long Beach 5k, 10k & Half Marathon (October edition) Oct 24
- Crown Point Half-Marathon & Marathon Relay, 8K & 5K Oct 25
- Santa Cruz Marathon Oct 25
November 2026
- Golden Gate Half Marathon & 5K Nov 1
- Two Cities Marathon Nov 1
- 2026 Monterey Bay Half Marathon Nov 7
- Beer City Half OC Nov 7
- Lake Chabot Trail Run Nov 7
- Mt. Tam Trail Run Nov 7
- REVEL Big Bear Nov 7
- 몬터레이 베이 하프 마라톤 Nov 7
- Monterey Bay Half Marathon 2026 Nov 8
- Run Malibu Half Marathon, 5K, & Kids Run Nov 8
- Santa Barbara Half Marathon & 5K 2026 Nov 8
- Silver Strand Half Marathon Nov 8
- Temecula Half Marathon, 10K & 5K Nov 8
- Berkeley Half Marathon Nov 14
- Kaiser Permanente Thrive Half Marathon & 5K Nov 14
- Snow Canyon Half Marathon Nov 14
- Berkeley Half Marathon 2026 Nov 15
- Santa Clarita Marathon Nov 15
- Davis Turkey Trot Nov 21
December 2026
- Santa to the Sea Dec 13
- San Diego Holiday Half Marathon Dec 19
- Holly Jolly Marathon Dec 20
- Woodside Ramble Dec 20
January 2027
- San Diego Resolution Run Jan 9
- The San Diego 50 & Trail Runs Jan 9
- Carlsbad Marathon, Half Marathon & 5K Jan 17
- Crystal Springs Winter Trail Run Jan 17
- Rose Bowl Half Marathon Jan 17
- Red Rock Canyon Jan 23
- Sun Marathon Jan 23
- Disneyland Half Marathon Weekend Jan 29
- The Bootleg Boogie 100 Jan 30
February 2027
- Golden Gate Trail Run (Winter) Feb 6
- 2027 Rock n Roll Las Vegas Half Marathon Feb 20
- Montara Mountain Trail Run Feb 20
- Rock 'n' Roll Las Vegas Feb 20
- 2027 Rock 'n' Roll Las Vegas Half Marathon Feb 21
- SOCAL River Marathon - 26.2 - 13.1 - 10K - 5K Feb 27
- Sycamore Canyon Half/50k/100k + Relay Feb 27
- Women's Half Marathon San Diego 2027 Feb 27