Found 304 races

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OCT
10

Santa Clarita, CA
• 41.0 miles
$20
Well, here we go again! Another Great idea to continue to advocate for rare families. We are putting on another event! The "Rare Stair Challenge 2" at Central Park in Santa Clarita. Start time is...
7
OCT
10

Brea, CA
• 43.7 miles
$50 -$75
Run it, hike it, and conquer the trails of the stunning and expansive Chino Hills State Park! Choose the 5K or 10K to challenge yourself with the beauty of trail running or hiking, all while...
5K 10K
21
OCT
11

Simi Valley, CA
• 42.7 miles
The Free Clinic of Simi Valley is hosting its annual Fredrick Michael Gibson Run/Walk for Depression Awareness. An event for the whole family offering a flat course for a 5K/10K, Half Marathon...
5K 10K Half Marathon
7
OCT
11

Laguna Niguel, CA
• 33.7 miles
$15 -$50
Who We Are: Healthy Kids Running Series is a five (5) week running program in the spring and fall for kids Pre-K through 8th grade. Each HKRS Series takes place once a week and offers...
0m 1m 2m 4m
4
OCT
11

Long Beach, CA
• 32.2 miles
Iconic Southern California marathon featuring a fast, flat oceanfront course through Long Beach's scenic coastline, perfect for Boston qualifiers and beginners alike.
3m Half Marathon Marathon
458
OCT
11

Montebello, CA
• 25.0 miles
Join the 10K & 5K races in Montebello with finisher medals - register now for this exciting running event!
5K 10K
407
OCT
11

Los Angeles, CA
• 25.7 miles
$35 -$40
In addition to the walkathon, where registrants can choose to walk or run, Witch Way to the Polls is a family-friendly event that features a lively Voter Election Resource Fair with community...
5K
30
OCT
17

Corona, CA
• 37.4 miles
$10 -$25
Get ready to make a difference and have a blast at the 11th Annual Combat Cancer Walk hosted by Support Sisterz! This community event is all about raising funds for women in Corona, Norco,...
35
OCT
17

Los Angeles, CA
• 18.3 miles
$40 -$45
The annual Boyle Heights 5K Run/Walk & Munchkin Fun Run takes place in the historic Mariachi Plaza and along the 6th Street Bridge. It starts & ends at Mariachi Plaza. The street will be lined up...
5K
17
OCT
17

Canoga Park, CA
• 37.9 miles
$34
Back to the Future: 88 MPH Dash 5K, 10K & Half October 17, 2026 · 7:00 a.m. PST · 6846 Owensmouth Ave, Canoga Park, CA Get ready to rev up your DeLorean and hit 88 MPH! This race celebrates the...
5K 10K Half Marathon
56
OCT
17

Lake View Terrace, CA
• 36.1 miles
$26 -$44
We are back at Hansen Dam!! It's time for the Dam Spooky 5k, 10k, 15k, Half Marathon run/walk on Saturday 10/17/26! Included in registration — - custom finisher medals - drawstring goodie bags -...
5K 10K 15K Half Marathon
25
OCT
17

Long Beach, CA
• 2.4 miles
$29 -$48
🎃🐶 Howl-O-Ween Dog Run 🐶🎃               5K & 1 Miler📍 Granada Beach – 5000 E Ocean Blvd, Long Beach, CA 90803 Get ready for a paws-itively spooky good time at the Howl-O-Ween Dog Run — where...
1m 5K
17
OCT
17

San Pedro, CA
• 9.5 miles
$80 -$110
Whether you're a runner, a festival lover, a K-pop fan, or simply looking for an unforgettable day outdoors, Infinite Challenge Run LA is an immersive festival experience where running,...
5K 10K
8
OCT
17

Long Beach, CA
• 2.6 miles
$24 -$42
Race Details Start Location: Alamitos Beach, 780 E Shoreline Dr. Long Beach, CAParking: Parking in the lot is $2/hour and starts at 8am, if you are running the Half/10m you can use the Passport...
5K 10K 10m Half Marathon
20
OCT
17

Pomona, CA
• 46.5 miles
$25 -$60
Join us for the 10th Annual Pomona 5K & 10K on Saturday, October 17, 2026 The Pomona 5K/10K celebrates its 10th anniversary on Saturday, October 17, 2026. Take the chance to be a part of this...
5K 10K
17
OCT
17

Aqua Dulce, CA
• 56.1 miles
$85 -$195
Trail running race (Half+/15K/10K/5K) at Vasquez Rocks, Agua Dulce, CA.
5K 10K 15K Half Marathon
85
OCT
17

Agua Dulce, CA
• 49.3 miles
$70 -$195
SPACEROCK: the final trail running frontier. These are the voyages of trail runners around the world. Your mission: to explore strange new trails, to seek out new life and new experiences, to...
5K 10K 15K Half Marathon
61
OCT
17

Norco, CA
• 33.1 miles
$60 -$150
The Ruck Challenge (TRC), now in its 10th Annual 10K 5K competition, aims to foster teamwork and camaraderie among veterans engaged in rehabilitative programs in our community. It challenges...
5K 10K
3
OCT
18

Beverly Hills, CA
• 24.4 miles
$15 -$55
A 5k run/walk along the tree-lined streets of Beverly Hills benefiting pediatric cancer research.
1K 5K
20
OCT
18

Riverside, CA
• 19.2 miles
$25 -$115
The 49th Annual Mission Inn Run returns to downtown Riverside on October 18, 2026!  The Mission Inn Run, a signature Riverside event and key fundraiser for the Mission Inn Foundation, has been a...
2K 5K 10K Half Marathon
143