Half-Marathon races in California, United States — 2026 running calendar

May

22

Beachfront Run

Ventura, California, United States

$20.00 - $80.00

Running

Half-Marathon 10K 5K 1K

May

23

Diablo Trail Run

Clayton, California, United States

Free - $90.00

Trail running Running

6.4K 16.1K Half-Marathon Marathon +3

May

29

SuperHeroes Run San Francisco

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

29

SuperHeroes Run Sacramento

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

May

29

Beer City Half™ San Jose

San Jose, California, United States

$30.00 - $95.00

Running

Half-Marathon 10K 5K 1.6K +2

May

29

SuperHeroes Run San Diego

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Jun

05

Wrigley River Run & Tadpole Trot

Long Beach, California, United States

$5.00 - $80.00

Running

16.1K Half-Marathon 10K 5K +4

Jun

05

Pre Reg 2027 Wrigley River Run & Tadpole Trot

Long Beach, California, United States

Running

16.1K Half-Marathon 10K 5K +2

Jun

05

Cinderella Trail Run

Oakland, California, United States

Free - $90.00

Trail running Running

8K Half-Marathon 30K Marathon +3

Jun

06

Lake Chabot Trail Challenge (Half Marathon & 5K)

Castro Valley, California, United States

$40.00 - $65.00

Trail running

Half-Marathon 5K

Jun

06

SuperHero - Runbelievable - 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

$15.00 - $52.99

Running

5K 10K Half-Marathon 1.6K +1

Jun

13

Old Zoo Half Marathon

Los Angeles, California, United States

$49.00 - $60.00

Running

Half-Marathon 12K