Running Race Calendar in California, United States

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

El Dorado Hills, California, United States

Sep 13, 2026 (Sun)

$10.00 - $50.00

Running

10K 5K 1K

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

Long Beach, California, United States

Sep 13, 2026 (Sun)

$46.99 - $58.99

Running

5K 10K Half-Marathon

Golden Gate Park XC Open

San Francisco, California, United States

Sep 13, 2026 (Sun)

$30.00

Running

6.4K

Mammoth BUFF - Beer Mile Run

Mammoth Lakes, California, United States

Sep 18, 2026 (Fri)

$30.00

Running

1.6K

Mile Madness Endurance Run

Auburn, California, United States

Sep 18, 2026 (Fri) – Sep 21, 2026

$129.00 - $449.00

Running

Ultra +4

San Diego Torch Relay

San Diego, California, United States

Sep 18, 2026 (Fri)

Free

Running

5K

Season of the Witch 5K 10K by Califlow Runs

Long Beach, California, United States

Sep 19, 2026 (Sat)

$44.99

Running

5K 10K

Black Oak Challenge

Tuolumne, California, United States

Sep 19, 2026 (Sat)

$10.00 - $25.00

Running

5K 1K

Anime Fan and Fitness Festival

Gilroy, California, United States

Sep 19, 2026 (Sat)

$40.00 - $50.00

Running

10K 5K

Hunter's Heart Foundation - A World Beyond Wheels 5K Walk, Run, Ride 2026

South El Monte, California, United States

Sep 19, 2026 (Sat)

$30.00 - $40.00

Running

5K

Jurassic Jaunt – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

Sep 19, 2026 (Sat)

$24.50 - $38.50

Running

5K 10K 10 Miler Half-Marathon

The 41st Annual Newark Mile 4k (2026)

Newark, California, United States

Sep 19, 2026 (Sat)

$20.00

Running

4K