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

Sep

12

Berkeley Trail Adventure

Berkeley, California, United States

Running

49.9K 34.8K Half-Marathon 9.7K

Sep

12

San Diego Neighborhood Run 5K & 10K

San Diego, California, United States

$35.00 - $39.72

Running

10K 5K

Sep

12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Sep

12

Beer City Half™ Bishop Ranch

San Ramon, California, United States

$32.50 - $105.00

Running

Half-Marathon 10K 5K 1.6K +1

Sep

12

The Running Fence Run: A Run of Freedom- Celebrating Christo's 1976 "Running Fence” art project

Bloomfield, California, United States

$60.00 - $160.00

Running

Marathon Half-Marathon 10K 5K

Sep

12

LSA's Run Home 2026

Los Gatos, California, United States

$50.00

Running

5K 10K

Sep

13

Shaver Lake Mile High Triathlon

Shaver Lake, California, United States

$55.00 - $350.00

Triathlon Aquabike Swimrun Duathlon Running

23.7K 48.4K 18.7K 5.3K +12

Sep

13

Gold Country Run 10K, 5K and Kids K Presented by Marshall

El Dorado Hills, California, United States

$10.00 - $55.00

Running

10K 5K 1K

Sep

13

Aloha Run San Diego

San Diego, California, United States

$45.00 - $55.00

Running

5K 10K

Sep

13

Park to Playa 10K

Culver City, California, United States

$55.00

Running

10K

Sep

13

Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs

Long Beach, California, United States

$48.99 - $62.99

Running

5K 10K Half-Marathon