Race Calendar in California, United States

Bizz Johnson

Susanville, California, United States

Oct 11, 2026 (Sun)

$75.00 - $110.00

Running

Ultra Half-Marathon 10K

Rock & Run

Aromas, California, United States

Oct 11, 2026 (Sun)

$25.00

Running

5K

Montebello Heritage 5K/10K

Montebello, California, United States

Oct 11, 2026 (Sun)

$30.00

Running

10K 5K

2026 XTERRA WETSUITS Mission Bay Triathlon & San Diego 5K

San Diego, California, United States

Oct 11, 2026 (Sun)

$37.00 - $163.00

Duathlon, Running

19K 5K

Andie's Aggieathlon (UC Davis Triathlon Club)

Davis, California, United States

Oct 11, 2026 (Sun)

$35.00 - $90.00

Triathlon

Classic Sprint (Collegiate) Classic Sprint (Age Group) Classic Sprint Relay (Individual Registration) Mixed Team Relay (Individual Registration)

Bike to Hope 2026

Petaluma, California, United States

Oct 16, 2026 (Fri)

Free

Cycling

Ultra 16.1K

Advanced Sailing October 17 US Sailing 101

San Diego, California, United States

Oct 17, 2026 (Sat)

Pomona 5K & 10K

Pomona, California, United States

Oct 17, 2026 (Sat) – Oct 24, 2026

$25.00 - $60.00

Running

5K 10K 15K 0.4K +3

The Jackalope Lope

Redding, California, United States

Oct 17, 2026 (Sat)

$65.00 - $90.00

Trail running

13.7K 33K Ultra

MPSF Open Water Championships - Masters/Open 5 Kilometer and 1 Kilometer Open Water Swim

Long Beach, California, United States

Oct 17, 2026 (Sat)

$75.00

Swimming

5K

The Donut Fun Run 2026!

Alameda, California, United States

Oct 17, 2026 (Sat)

$39.00

Running

5K

Heart of Cool Trail Run

Cool, California, United States

Oct 17, 2026 (Sat)

$40.00 - $70.00

Trail running

5K 10K Half-Marathon