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

Apr

11

Penn Valley Daffodil Race

Penn Valley, California, United States

$25.00 - $35.00

Running Walking

5K 10K

Apr

11

Morgan Hill AAUW Wildflower Run

Morgan Hill, California, United States

$31.00 - $55.00

Running Walking

10K 5K 2K +2

Apr

17

Run for the Planet -An Earth Day Run by CaliFlow Runs - 5K, 10K, Half Marathon

Long Beach, California, United States

$25.00 - $48.99

Running

5K 10K Half-Marathon 1.6K

Apr

17

Mountains 2 Beach Marathon and Half

Ventura, California, United States

$25.99 - $139.99

Running

5K 47.2K 26.1K 15K +4

Apr

17

Wild Flowers 10k

Auburn, California, United States

$80.00

Running

10K

Apr

17

Badger Cove

Livermore, California, United States

$35.00 - $90.00

Running

Half-Marathon 10K 5K

Apr

24

Run for Donut San Francisco

San Francisco, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Apr

24

Run for Donut San Diego

San Diego, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Apr

24

Run for Donut Sacramento

Sacramento, California, United States

$30.00 - $45.00

Running

5K 10K Half-Marathon 1.6K +8

Apr

24

Running Is For The Birds - 5K, 10K, Kids Run - Earth Day Celebration

Huntington Beach, California, United States

Free - $45.00

Running

5K 10K Fuzzy Feathers Kids Run Beach Clean up only +2

Apr

24

Nail the Rail Half Marathon, 10K & 5K

Shasta Lake, California, United States

$29.00 - $69.00

Running

Half-Marathon 10K 5K

Apr

24

Kiwanis El Segundo Pta Run for Education 5K|10K

El Segundo, California, United States

$20.00 - $45.00

Running

5K 10K 0.5K 1K