Trail running Race Calendar in California, United States

Aug

29

SPASM Crystal Springs Trail Run

Woodside, California, United States

Free - $100.00

Trail running Running

10K Half-Marathon 35.4K Marathon +2

Sep

05

Colby Mountain Trailfest

Butte Meadows, California, United States

$50.00 - $80.00

Trail running

5K 12.1K 24.1K

Sep

06

Diablo Trail Run

Clayton, California, United States

Free - $90.00

Trail running Running

6.4K 16.1K Half-Marathon Marathon +2

Sep

06

Mammoth Bar Trail Runs

Auburn, California, United States

Trail running

Half-Marathon 10K

Sep

11

The Honey Badger Half (& 10K/5K)

Santa Venetia, California, United States

$45.00 - $100.00

Running Trail running

5K 10K Half-Marathon +2

Sep

12

Los Angeles Sunset Relays | 5K & Kid Run

Los Angeles, California, United States

$19.50 - $245.00

Running Trail running

16.1K 5K 1.6K 4K +1

Sep

26

JP's Backyard Ultra/Hike, The Final Edition

Napa, California, United States

Free

Trail running

Ultra

Oct

02

Sgrail Marin - Triathlon & Trail Half Marathon

San Rafael, California, United States

Free - $390.00

Triathlon Running Trail running

Kids "Fun" Event Ultra Half-Marathon +1

Oct

03

Cirque Series - Mt Baldy, CA

Mt Baldy, California, United States

$92.45

Trail running

14.6K

Oct

04

Saddle2Surf

Norco, California, United States

$100.00 - $200.00

Trail running

Ultra

Oct

10

Ruth Anderson Memorial Endurance Run

San Francisco, California, United States

Free

Trail running Running

Ultra 7.2K

Oct

10

Ridge Creek Run Club 12 Hour Ultra

Dinuba, California, United States

$95.00

Trail running

12 Hour Ultra Lap Run