Trail running Race Calendar in California, United States

Oct

10

Ridge Creek Run Club 12 Hour Ultra

Dinuba, California, United States

$95.00

Trail running

12 Hour Ultra Lap Run

Oct

11

Bizz Johnson

Susanville, California, United States

$75.00 - $110.00

Running

Ultra Half-Marathon 10K

Oct

17

Lake Hodges Trail Festival

San Diego, California, United States

$15.00 - $145.00

Trail running Running Duathlon

50K 25.1K 15K 10.3K +7

Oct

17

The Jackalope Lope

Redding, California, United States

$65.00 - $90.00

Trail running

13.7K 33K Ultra

Oct

17

Heart of Cool Trail Run

Cool, California, United States

$40.00 - $70.00

Trail running

5K 10K Half-Marathon

Oct

17

SPACEROCK Trail Race

Agua Dulce, California, United States

$85.00 - $175.00

Trail running

22.4K 14.3K 10K 5K

Oct

18

Fleet Feet Fall Classic - Trail October 18th, 2026

Chico, California, United States

$90.00

Trail running

Half-Marathon 6.4K

Oct

31

ZombieRunner Halloween

San Jose, California, United States

Free - $80.00

Trail running Running

5K 10K Half-Marathon Marathon +6

Nov

07

Lake Chabot Trail Run

Castro Valley, California, United States

Free - $90.00

Trail running Running

7.7K Half-Marathon 30K Marathon +4

Nov

07

Epicpalooza

Moorpark, California, United States

$55.00 - $75.00

Trail running

10K 5K

Nov

14

Catalina Island Half-Marathon & 10K

Avalon, California, United States

$25.00 - $135.00

Trail running Running

Half-Marathon 10K 1K

Nov

14

ZombieRunner Quarry Lakes

Fremont, California, United States

Free - $70.00

Trail running Running

5K 10K Half-Marathon 3.2K +4