Found 268 races

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Connect with runners, find training partners, and celebrate every finish together

OCT
10

Riverbank, CA
• 8.8 miles
$25 -$65
7:45AM--1 Mile – Flat loop around neighborhood 8:15AM-- 5K—Gently rolling residential tree-lined course    8:15AM-- 10K—Gently rolling residential streets, two loop course   (90 minute cut off...
1m 5K 10K
99
OCT
10

Petaluma, CA
• 32.6 miles
$50
Run for Austin’s Lungs is a family-friendly 5K walk/run held in honor of baby Austin, who is bravely battling chronic lung disease. Join us to celebrate his first birthday, raise awareness of his...
39
OCT
10

San Francisco, CA
• 68.7 miles
The course is a 4.5 mi loop around Lake Merced.
4m Marathon 50K 50m
85
OCT
10

Concord, CA
• 0.2 miles
Join us as we stroll around St. Agnes Church, and help us raise funds to meet the needs of our neighbors in need!  Rental help, food, gasoline, utility bills, car registration--these are some of...
25
OCT
11

Nevada City, CA
• 31.6 miles
$35 -$80
Second annual trail race in Nevada County hosted by Sierra TrailBlazers and Bear Yuba Land Trust
5K 10K Half Marathon
150
OCT
11

Fresno, CA
• 44.1 miles
$40 -$55
Join us for the 8th annual Oktoberfest Pumpkin Run! What a great way to start your new Fall Running Schedule! Pretzels, Pumpkins & Beer!!!!  Run or walk along our scarecrow and pumpkin decorated...
2m 5K 10K
66
OCT
11

Aromas, CA
• 6.5 miles
$25 -$30
Lace up your running shoes and join us for one of the most unique 5K events in California. For one day each year, Graniterock's historic Wilson Quarry opens its gates to the community, giving...
5K
44
OCT
11

San Francisco, CA
• 45.2 miles
San Francisco running club hosting $10 races nearly every weekend for all levels.
10K
38
OCT
17

Elk Grove, CA
• 34.7 miles
$45 -$55
**If you are a Breast Cancer Survivor, please contact Adiyama before registering: [email protected] Come enjoy a 1.4 mile walk or 2.8 mile run and a day of fun activities in...
1m 2m
29
OCT
17

Cool, CA
• 35.7 miles
$40 -$99
Are you looking for a fun run for a great cause? If so, HoC 5k, 10k and half marathon is just what you are looking for!  Proceeds from this race support programs funded through Georgetown Divide...
5K 10K Half Marathon
114
OCT
17

Merced, CA
• 58.6 miles
$25 -$40
Complete the Paws on Patrol K-9 Heroes Series!  Love running for a great cause?  Take on the Paws on Patrol K-9 Heroes Series by participating in both Paws on Patrol events!   Paws on Patrol 5K ...
1m 5K 10K
51
OCT
17

Gardnerville, NV
• 40.9 miles
$20 -$35
Join us for our third run of the "We Run This Town" fun run/ walk series in October, as we Paint the Town Pink during our 5k fun run/walk through Gardnerville. Explore the view along the...
5K
83
OCT
17

San Jose, CA
• 48.7 miles
$41
5K run/walk raising money to support justice-involved people reentering the community. In-person and virtual options.
5K
54
OCT
17

Alameda, CA
• 21.1 miles
$39 -$59
A timed, donut-themed 5K race for all ages and abilities at Alameda Point's Seaplane Lagoon Promenade.
129
OCT
18

San Francisco, CA
• 27.9 miles
Challenging course consisting of grass, trails, and bike paths. Ever wonder what running through sand, grass, wood chips, and paved roads would feel like, all while taking in the amazing scenery...
5K
20
OCT
18

Fresno, CA
• 51.7 miles
$25 -$47
  Join us on Sunday, October 18th, 2026 for a fun Donut Themed 5k Run & Walk at Woodward Park! Back for 2026 -  Kids 100 yard Donut Dash for ages 9 & under!  Not only will runners be treated to...
5K
90
OCT
18

Roseville, CA
• 16.2 miles
$15 -$30
Join us as we have fun raising funds in support of the bleeding disorders community! Featuring: Vampire Run 5K – join us at our first ever 5K on the trails of Roseville, CA! All runners will get...
1m 5K
56
OCT
24

Hollister, CA
• 104.3 miles
$30 -$55
Winery 5K with souvenir wine glass, finisher medal, and a pour of wine at the finish
5K
42
OCT
24

San Francisco, CA
• 29.2 miles
Miles for Migraine will host its 17th annual 2-mile Walk, 5K Run and Relax San Francisco Event at the Music Concourse Bandshell at Golden Gate park. This event is a fundraiser for Migraine &...
2m 5K
30
OCT
24

Fresno, CA
• 44.1 miles
$25 -$50
Welcome to our 12th annual Monster Mash Dash run!  Great family event!  Perfect for the Big and Little Monsters alike! Great amenities like Glow-in-the-Dark finisher medallion and event shirt...
5K
88