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

La Noche de La Llorona Run SummerWeen Series 5K 10K Half by Califlow Runs

Long Beach, California, United States

21 Jun, 2026 (Sun)

$29.99 - $65.99

Running

5K 10K 1.6K Half-Marathon

Father’s Day Classic – 5K, 10K, 10-Miler, and Half Marathon

Long Beach, California, United States

21 Jun, 2026 (Sun)

$24.50 - $38.50

Running

5K 10K 16.1K Half-Marathon

The Rock the Loch 5K/10K/Half Marathon (LIVE or Virtual)

Castro Valley, California, United States

26 Jun, 2026 (Fri) – 29 Jun, 2026

$45.00 - $100.00

Running, Trail running

5K 10K Half-Marathon +2

Boogie Nights 5K & 10K

Canoga Park, California, United States

27 Jun, 2026 (Sat)

$34.99

Running

5K 10K

Summer time in the LBC 5K, 10K, & Half Marathon by Califlow Runs

Long Beach, California, United States

27 Jun, 2026 (Sat)

$45.99 - $52.99

Running

5K 10K Half-Marathon

Alien Run – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

28 Jun, 2026 (Sun)

$24.50 - $38.50

Running

5K 10K 15K Half-Marathon

Run for Chocolate 5K/10K/13.1 SAN DIEGO

San Diego, California, United States

04 Jul, 2026 (Sat)

$30.00 - $50.00

Running

5K 10K Half-Marathon 1.6K +2

2026 Santa Cruz Sunrise Rotary Firecracker Run

Santa Cruz, California, United States

04 Jul, 2026 (Sat)

$15.00 - $45.00

Running

1K 10K 5K

July 4th Run 5K/10K/13.1 LOS ANGELES

Los Angeles, California, United States

04 Jul, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

Folsom Firecracker Race

Folsom, California, United States

04 Jul, 2026 (Sat)

$30.00 - $50.00

Running

5K 10K 3.2K +4

Run for Chocolate 5K/10K/13.1 SAN FRANCISCO

San Mateo, California, United States

04 Jul, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2

July 4th Run 5K/10K/13.1 SACRAMENTO

Sacramento, California, United States

04 Jul, 2026 (Sat)

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +2