Found 743 races

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OCT
25

Simi Valley, CA
$25 -$44
It's time for the Haunted Valley 5k, 10k, 15k, Half Marathon fun run/walk at Rancho Simi Park!!! Sunday, October 25th, 2026 Check-in - 6:45-7:30AM for everyone Start - 7:30AM Address - Rancho...
5K 10K 15K Half Marathon
39
OCT
25

Huntington Beach, CA
$30 -$65
Hop, Skip & Splash 5K Fun Run/Walk Making Waves for Water Safety in Orange County Join us on Sunday, October 25, 2026, for the 4th annual Hop, Skip & Splash 5K — a fun, family-friendly beachside...
5K
42
OCT
25

Playa Del Rey, CA
$25 -$80
On Sunday, October 25, 2026, Sharsheret will gather hundreds of thrivers, caregivers, friends and supporters on the beach for our 5th Annual West Coast Dash in support of our breast and ovarian...
1K 5K 10K
20
OCT
25

La Canada, CA
$10 -$65
Young At Heart Foundation supports kids and their families that are awaiting and recovering from organ transplants. Join us at the Hahamongna Watershed park area, Just north of the Rose Bowl...
1m 5K
38
OCT
25

Van Nuys, CA
$24 -$50
It's Halloween! Let's celebrate together, dress up in costume, and eat candy! Race DetailsLocation: Woodley Park, 6076 Woodley Ave, Encino, CAParking: Free parking in the lot; more is available...
5K 10K Half Marathon
26
OCT
25

Long Beach, CA
$15 -$52
🎃 Trick or Trot 5K, 10K & Half MarathonSunday, October 25, 2026 | Long Beach, CA👻 Our 2nd-Year Anniversary Run! Witches, goblins, ghouls, and more — come run the coast in costume lore!It’s our...
0m 5K 10K Half Marathon
210
OCT
30

Ventura, CA
$5
Lake Casitas Short Course Championships is a high school level meet, home of the Ventura County Championship on the beautiful Lake Casitas Cross Country Course where many legends of the sport...
17
OCT
30

Alameda, CA
$45 -$55
Event Details: October 30th.  Friday pre-halloween Evening Run  We have partnered with the USS Hornet to bring back a super fun and unique race experience to Alameda. Our "day of the dead"...
5K
30
OCT
31

Sacramento, CA
$30 -$40
Come celebrate Día De Los Muertos (Day Of The Dead) and run a 5k race.    5k run/walk starts 9am on Saturday October 31st, 2026. All levels are welcome, it is a fully paved path, strollers are...
5K
109
OCT
31

San Jose, CA
$30 -$75
And......we're back! We're thrilled to announce our 7th Annual Gardner Health Services Día de los Muertos Run-Walk, now featuring a more focused 5K route to make your experience even more vibrant...
5K
53
OCT
31

long beach, CA
$22 -$44
It's time for our Happy Halloween 5k, 10k, 15k, Half Marathon fun run/walk!!! Check-in - 6:30-7:30AM for everyone Start - 7:30AM Included in registration — - custom finisher medals - drawstring...
5K 10K 15K Half Marathon
15
OCT
31

Los Angeles, CA
$45
Join us for our 9th Doggie Dash - the Howl-o-ween Doggie Dash 5K! Run (or walk) with your pup to help LA Frontrunners raise funds for The Rescue Train & Angel City Pit Bulls!  All the details are...
5K
28
OCT
31

Anaheim, CA
$20 -$60
It’s Back — The Annual Northgate Market 5K!We’re thrilled to welcome you to this beloved community tradition, benefiting the Familia González Reynoso Foundation. This incredible organization...
1K 5K
20
OCT
31

Los Angeles, CA
$30 -$45
Casual, wave-based 5K/10K/half marathon group run at Palisades Park in Los Angeles.
1m 5K 10K Half Marathon
32
OCT
31

Stockton, CA
$10 -$55
Come One, Come All to the Halloween Spooktacular! Formerly known as the Brain Health to Beat Stroke, this event is a fang-tastic 5K, 10K, and 1K that raises funds and awareness for strokes. Don't...
1K 5K 10K
16
OCT
31

Long Beach, CA
$46 -$62
🎃 The Long Beach Halloween Run5K • 10K • Half Marathon • Kids Dash 📍 Start/Finish: Alamitos Beach, 780 E Shoreline Dr., Long Beach, CA📸 Iconic Backdrop: The legendary Queen Mary Get ready for a...
5K 10K Half Marathon
25
OCT
31

San Diego, CA
The Tierrasanta Monster Dash 5K and 5K fun run walk is back in 2026. Save the date - Saturday October 31 - Halloween! What better day to haunt the boulevard in T-Town? Come in costume and wow the...
5K
21
OCT
31

Whittier, CA
$25 -$55
Additional race information can be found at https://www.whittier5k.com. LocationWhittier Community Center7630 Washington AveWhittier, CA US 90602 DetailsEarly Packet Pick UpFriday, October 30,...
5K
31
OCT
31

San Jose, CA
$25 -$100
Halloween costume run along Coyote Creek trail with 5K to Marathon distances and a costume contest.
5K 10K Half Marathon Marathon
97
NOV
1

Chico, CA
$45 -$60
Join us, in person, on November 1st, 2026 for the 52nd Annual Almond Bowl in the beautiful Lower Bidwell Park! Keeping with the Chico tradition we will be hosting a 5k and 10k race starting on...
5K 10K
105