May 5Ks within 400 miles of Castro Valley, CA

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Featured Listings
No Race Date Race Location Options
1
May 4, 2025
Sunday
Beer City Half Sacramento
13.1M, 10K, 5K, 1M run
West Sacramento, CA
Yolo County, CA
No Race Date Race Location Options
1
Past Date
May 1, 2024
Wednesday
Into the Wild Saddleback Wilderness 5K
5K trail run
Orange, CA
351 miles point to point
Orange County, CA
2
Past Date
May 2, 2024
Thursday
Cinco de Mile Ole 5 Que
5K run | kids run
Bakersfield, CA
228 miles point to point
Kern County, CA
3
May 3, 2025
Saturday
Byxbee parkrun
5K run
Palo Alto, CA
18 miles point to point
Santa Clara County, CA
4
May 3, 2025
Saturday
Cinco de Mayo Half Marathon
13.1M, 15K, 10K, 5K run
Long Beach, CA
341 miles point to point
Los Angeles County, CA
5
May 3, 2025
Saturday
Hacienda Hills Run
50K, 26.2M, 13.1M, 9M, 10K, 5K trail run
San Jose, CA
19 miles point to point
Santa Clara County, CA
6
May 3, 2025
Saturday
Hearts With a Mission Superhero Run
10K, 5K, 1M run | kids run
Valley of the Rogue State Park, OR
330 miles point to point
Jackson County, OR
7
May 3, 2025
Saturday
Kerman Almond Festival Scholarship Fun Run
5K run | kids run
Kerman, CA
127 miles point to point
Fresno County, CA
8
May 3, 2025
Saturday
Lost Creek Trail Run
50K, 30K, 5K trail run | 30K relay
Trail, OR
344 miles point to point
Jackson County, OR
9
May 3, 2025
Saturday
NURSES ROCK Run
10K, 5K run
Virtual Option
San Dimas, CA
336 miles point to point
Los Angeles County, CA
10
May 3, 2025
Saturday
Ryan Bonaminio parkrun
5K run
Riverside, CA
358 miles point to point
Riverside County, CA
11
May 3, 2025
Saturday
Silva Strong Superhero 5K
5K run
Mendota, CA
111 miles point to point
Fresno County, CA
12
May 3, 2025
Saturday
Tacos N' Beer 5K
5K run
South El Monte, CA
330 miles point to point
Los Angeles County, CA
13
Past Date
May 4, 2024
Saturday
AAUW Madtown 5K
5K run
Madera, CA
119 miles point to point
Madera County, CA
14
May 4, 2025
Sunday
Aztec Run for Education
5K run
Virtual Option
Oakland, CA
12 miles point to point
Alameda County, CA
15
May 4, 2025
Sunday
Beer City Half Sacramento
13.1M, 10K, 5K, 1M run
West Sacramento, CA
68 miles point to point
Yolo County, CA
16
May 4, 2025
Sunday
Cal Tri Ventura
olympic, sprint triathlon | olympic, sprint triathlon relay | olympic, sprint duathlon | 10K, 5K run | youth triathlon
Ventura, CA
278 miles point to point
Ventura County, CA
17
May 4, 2025
Sunday
Cinco De Miles 5K/5M
5M, 5K, 1M run
Virtual Option
Huntington Beach, CA
353 miles point to point
Orange County, CA
18
Past Date
May 4, 2024
Saturday
Cinco Mayo 5K
5K run
Stockton, CA
46 miles point to point
San Joaquin County, CA
19
May 4, 2025
Sunday
Devil Mountain Run
10K, 5K, 1M run | kids run
Danville, CA
10 miles point to point
Contra Costa County, CA
20
Past Date
May 4, 2024
Saturday
Giddy Up 5K
5K run
Temecula, CA
391 miles point to point
Riverside County, CA

For the love of all that Is good And moisture wicking...

Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.

ALWAYS visit the race's website for the most complete and accurate race information.