10K races in California, United States — 2026 running calendar

May

15

Jed & Ted’s Bill & Ted’s Excellent Race 5K & 10K

Canoga Park, California, United States

$34.99

Running

5K 10K The Excellent Adventure Virtual Race

May

22

Beachfront Run

Ventura, California, United States

$20.00 - $80.00

Running

Half-Marathon 10K 5K 1K

May

22

The Sports Spectacular 5K/10K WILL be now in May, 2027.

Huntington Beach, California, United States

$40.00 - $46.00

Running

5K 10K

May

22

Big River Adventure

Mendocino, California, United States

$10.00 - $35.00

Running Walking Swimming Paddle sports

Kiddie Race 5K 10K Big River Swim +2

May

23

Pre-Registration Providence Saint John's Health Center Brentwood Run

Los Angeles, California, United States

$10.00 - $45.00

Running

10K 5K 1K

May

29

Beer City Half™ San Jose

San Jose, California, United States

$30.00 - $95.00

Running

Half-Marathon 10K 5K 1.6K +2

May

30

Providence Saint John's Health Center Brentwood Run

Los Angeles, California, United States

$10.00 - $35.00

Running

10K 5K 1K

May

31

Memorial Day 5K, 10K & Kids 1 Mile Run/Walk

Hemet, California, United States

$30.00 - $50.00

Running

5K 10K 1.6K

Jun

05

Pre Reg 2027 Wrigley River Run & Tadpole Trot

Long Beach, California, United States

Running

16.1K Half-Marathon 10K 5K +2

Jun

05

Wrigley River Run & Tadpole Trot

Long Beach, California, United States

$5.00 - $75.00

Running

16.1K Half-Marathon 10K 5K +4

Jun

06

SuperHero - Runbelievable - 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

$15.00 - $52.99

Running

5K 10K Half-Marathon 1.6K +1

Jun

19

Cal Tri Castaic Lake - 6.19.27

Castaic, California, United States

Free - $500.00

Triathlon Aquabike Swimrun Swimming Running Duathlon

Sprint Triathlon Olympic Triathlon Youth Sprint Triathlon Sprint RunBikeRun (5km run, 15km bike, 5km run) +15