Half Marathons in California — 2026

There are 222 half marathons in California scheduled for 2026. The next is the Pirates Plunder – 5K, 10K, 10-miler, and Half Marathon in Long Beach on September 6. California half marathons run primarily September through August.

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

Sat, Apr 10 · San Diego, CA San Diego

Family 1 Mile Fun RunVirtual Run Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Coffee Lover Run LOS ANGELES

Sat, Apr 24 · Los Angeles, CA Los Angeles

Family 1 Mile Fun RunVirtual Run Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Nail the Rail Half Marathon, 10K & 5K

Sat, Apr 24 · Shasta Lake, CA Shasta Lake

5K5K10K +3

From $29 Open

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American River Parkway Half Marathon

Sat, Apr 24 · carmichael, CA carmichael

Kids Otter Dash5KRunner Half Marathon +1

Closed

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Coffee Lover Run SACRAMENTO

Sat, Apr 24 · Sacramento, CA Sacramento

Family 1 Mile Fun Run5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Coffee Lover Run SAN FRANCISCO

Sat, Apr 24 · San Francisco, CA San Francisco

Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Run for Donut LOS ANGELES

Sat, Apr 24 · Los Angeles, CA Los Angeles

Family 1 Mile Fun Run5K/10K/13.1 Eco-Registration (No Shirt)5K Registration +3

From $30 Open

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Run, Fiesta, Repeat - Cinco de Mayo 5K, 10K, & Half Marathon

Sat, May 1 · Long Beach, CA Long Beach

5K10KHalf Marathon

From $24.99 Open

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Beer City Half™ Sacramento

Sat, May 8 · Sacramento, CA Sacramento

Beat the Beast Beer MileBeer StrollBeer Stroll +11

From $0 Open

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Run for Chocolate 5k/10k/13.1 LOS ANGELES

Sat, May 8 · Los Angeles, CA Los Angeles

Family 1 Mile Fun RunVirtual Run Registration5K Registration +3

From $30 Open

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Trailquake

Sun, May 9 · Saratoga, CA Saratoga

5K5K10K +5

From $45 Open

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14th Annual Luc's Run

Sat, May 15 · Tuolumne, CA Tuolumne

Kids Run (10 & Under only)Virtual Run - Kids (10 & Under only)Kids Run (10 & Under only) +11

From $22 Open

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La Jolla Half Marathon, 10K, & 5K

Sat, May 15 · La Jolla, CA La Jolla

5k5k10k +3

From $44 Open

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Beer City Half™ San Jose

Sat, May 29 · San Jose, CA San Jose

Beer StrollBeat the Beast Beer MileBeer Stroll +9

From $30 Open

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Sugar Daddy Race

Sat, Jun 19 · Santa Clarita, CA Santa Clarita

Kids Fun RunKids Fun Run5K +5

From $35 Open

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Summer Solstice Run : 5K.10K. Half Marathon –by Califlow Runs

Sat, Jun 19 · Long Beach, CA Long Beach

5K5K10K +3

From $45.99 Open

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Red, White & Blue Race

Sat, Jul 3 · Fort Bragg, CA Fort Bragg

Kiddie RaceKiddie Race5K Fun Run/Walk +5

From $25 Open

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

Sat, Jul 10 · Long Beach, CA Long Beach

5K5K10K +3

From $38.99 Open

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Green Valley Lake 5k/10k/& Half Marathon

Sat, Aug 7 · Green Valley Lake, CA Green Valley Lake

Green Valley Lake 5kGreen Valley Lake 5kGreen Valley Lake 10K +3

From $40 Open

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GOOD COMPANY 14K

Sun, Aug 29 · Valencia, CA Valencia

GOOD COMPANY 14K

From $84.95 Closed

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Barbara Schmidt Millar Women's Triathlon & 5K: Celebrating Life, Empowering Women

Sun, Aug 29 · Nevada City, CA Nevada City

Barbara Schmidt Millar Women's 5k Run/WalkBarbara Schmidt Millar Women's 5k Run/WalkBarbara Schmidt Millar Women's Triathlon Celebrating Life, Empowering Women +3

From $40 Closed

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Pre Reg 2027 Torrance Memorial Medical Center, BRA Run, Los Angeles

Sun, Aug 29 · Playa Del Rey, CA Playa Del Rey

Kids 1K5KVirtual 5K +5

From $12.5 Open Closing Soon 20 spots left

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