Marathon races in California, United States — 2026 running calendar

Mar

13

Catalina Island Marathon, 10K, 5K

Avalon, California, United States

$25.00 - $396.00

Trail running Running

Marathon 10K 5K 1K +1

Mar

20

Redwood (Spring) Trail Run

Oakland, California, United States

Free - $90.00

Trail running Running

8K Half-Marathon 29.5K Marathon +5

Apr

03

Bedrock Valley Trail Runs

Hemet, California, United States

$15.00 - $115.00

Trail running Running Cycling

Marathon Half-Marathon 15K 10K +9

Apr

03

Bakersfield Marathon

Bakersfield, California, United States

$10.00 - $130.00

Running

1K 6.4K Marathon Half-Marathon +3

Apr

04

Modesto Marathon

Modesto, California, United States

$51.00 - $135.00

Running

Marathon Half-Marathon 10K 5K +8

Apr

16

Run4Kids Ultra Running Party

Corona, California, United States

$59.00 - $149.00

Trail running Running

6 Hour 12 Hour 24 Hour Half Marathon +4

Apr

17

Mountains 2 Beach Marathon and Half

Ventura, California, United States

$25.99 - $139.99

Running

5K 47.2K 26.1K 15K +4

Apr

17

Horseshoe Lake Trail Run

Los Gatos, California, United States

Free - $90.00

Trail running Running

8.2K Half-Marathon 30K Marathon +2

Apr

24

SPASM Lake Chabot Trail Run

Castro Valley, California, United States

Free - $90.00

Trail running Running

8K Half-Marathon 28.8K Marathon +2

May

01

The Hoag OC Marathon Running Festival

Costa Mesa, California, United States

Free - $194.00

Running

5K Half-Marathon Marathon Charity Half Marathon +15

May

02

Avenue of the Giants Marathon

Arcata, California, United States

$60.00 - $100.00

Running

Marathon Half-Marathon 10K

May

08

Grizzly Peak Trail Run

Berkeley, California, United States

Free - $90.00

Trail running Running

10K Half-Marathon 30K Marathon +3