Marathon races in California, United States — 2026 running calendar

Sep

06

Diablo Trail Run

Clayton, California, United States

Free - $100.00

Trail running Running

6.4K 16.1K Half-Marathon Marathon +2

Sep

07

LARPD Marathon On The Move Trail Challenge

Livermore, California, United States

$7.00

Running

Marathon

Sep

12

The Running Fence Run: A Run of Freedom- Celebrating Christo's 1976 "Running Fence” art project

Bloomfield, California, United States

$60.00 - $160.00

Running

Marathon Half-Marathon 10K 5K

Sep

12

The Syty Marathon

San Diego, California, United States

Running

Marathon

Oct

11

2026 Humboldt Redwoods Marathon, Half Marathon, 5K

Weott, California, United States

$60.00 - $145.00

Running

Half-Marathon 5K Marathon

Oct

31

ZombieRunner Halloween

San Jose, California, United States

Free - $80.00

Trail running Running

5K 10K Half-Marathon Marathon +6

Nov

01

Two Cities Marathon

Fresno, California, United States

$62.00 - $150.00

Running

Marathon Half-Marathon 10K 5K

Nov

01

Miles For Meals Triathlon and Marathon

Sacramento, California, United States

$90.00 - $100.00

Running

Ultra Marathon

Nov

07

Lake Chabot Trail Run

Castro Valley, California, United States

Free - $90.00

Trail running Running

7.7K Half-Marathon 30K Marathon +4

Jan

09

San Diego 50 & Trail Runs

Escondido, California, United States

$15.00 - $155.00

Trail running Running

Ultra Marathon Half-Marathon 16.1K +6

Jan

17

The Redding Marathon Events

Redding, California, United States

$20.00 - $150.00

Running

Marathon 5K

Feb

06

Golden Gate Trail Run

Sausalito, California, United States

Free - $90.00

Trail running Running

8K Half-Marathon 30K Marathon +2