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

The Sasquatch Scramble 5K/10K/ENIGMATIC 11 MILER (live or virtual)

San Francisco, California, United States

May 8, 2026 (Fri) – May 11, 2026

Running

5K 10K Half-Marathon +2

The Sasquatch Scramble 5K/10K/Enigmatic 11 Miler (LIVE or VIRTUAL)!

San Francisco, California, United States

May 8, 2026 (Fri) – May 11, 2026

Running

5K 10K

Summer is here 5k/10k!

Modesto, California, United States

May 7, 2026 (Thu) – Jun 6, 2026

Running

5K 10K

Verdugo Mountains 10K Trail Run & Hike

Glendale, California, United States

May 3, 2026 (Sun)

Running

10K

2026 Cal Tri Ventura - 5.3.26

Ventura, California, United States

May 3, 2026 (Sun)

Triathlon, Running, Swimming

Ultra 4.8K 1.5K 9.7K

May the 4th be with You- The Empire Strides Back 5K, 10K, & Half Marathon by Califlow Runs

Long Beach, California, United States

May 3, 2026 (Sun)

Running

5K 10K Half-Marathon 1.6K

Angwin To Angwish

Angwin, California, United States

May 3, 2026 (Sun)

Running

10K 26K

2026 Avenue of the Giants Marathon

Arcata, California, United States

May 3, 2026 (Sun)

Running

Marathon Half-Marathon 10K

Finish The Ride and Finish The Run Griffith Park

Los Angeles, California, United States

May 2, 2026 (Sat) – May 3, 2026

Running, Cycling

1K 5K 10K 15K +7

Cinco De Mayo Run 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

May 2, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2

The Rebel Run – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

May 2, 2026 (Sat)

Running

5K 10K Half-Marathon

Cinco De Mayo Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

May 2, 2026 (Sat)

Running

5K 10K Half-Marathon 1.6K +2