Half Marathons in California — 2026

There are 230 half marathons in California scheduled for 2026. The next is the Run Juneteenth Day 5K/10K/13.1 SACRAMENTO in Sacramento on June 20. California half marathons run primarily June through August.

Oktoberfest Run 5K/10K/13.1 SAN FRANCISCO

Sat, Sep 26 · San Francisco, CA San Francisco

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

From $30 Open

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Oktoberfest Run 5K/10K/13.1 SACRAMENTO

Sat, Sep 26 · Sacramento, CA Sacramento

Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open

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Oktoberfest Run 5K/10K/13.1 SAN DIEGO

Sat, Sep 26 · San Diego, CA San Diego

Family 1 Mile Fun RunVirtual Run Registration5K Registration +3

From $30 Open

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The Retro Run – 5K, 10k, 10m, and Half Marathon

Sun, Sep 27 · Long Beach, CA Long Beach

5k10-Mile10K +1

From $24.5 Open

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Tri to Inspire

Sun, Sep 27 · Santa Rosa, CA Santa Rosa

Mini Sprint Triathlon - Youth (16 & under)Mini Sprint Triathlon - FamilyMini Sprint Triathlon - Adult +5

From $45 Open 2 spots left

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Mean Girls 5K, 10K & Half Marathon

Sat, Oct 3 · Canoga Park, CA Canoga Park

The Burn Book 5KThe Glen Coco 10KThe Full Plastics Half Marathon +1

From $34.99 Open

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Napa Half Marathon

Sun, Oct 4 · Napa, CA Napa

Quarter Marathon!1/2 Marathon

From $70 Open

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Redding Breakfast Lions Turtle Bay Run 2026

Sun, Oct 4 · Redding, CA Redding

Turtle Bay 2 mile Fun RunTurtle Bay 10 KTurtle Bay Run Half Marathon

From $25 Open

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Judgment Day Half Marathon, 10K & 5K Run/Walk

Sun, Oct 4 · Bakersfield, CA Bakersfield

5K Run/Walk10K Run/WalkHalf Marathon +1

From $40 Open Closing Soon

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Peace Officer Memorial Run

Sun, Oct 4 · Modesto, CA Modesto

Kids Fun Run5KFull Gear Challenge 5K +5

From $0 Open 50 spots left

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Hallo-Thanks-Mas Dash – 5K, 10K, and Half Marathon

Sun, Oct 4 · San Diego, CA San Diego

5k10KHalf Marathon

From $29.5 Open

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Run by the Sea

Sun, Oct 4 · Santa Cruz, CA Santa Cruz

Run by the Sea 4kRun by the Sea 12kRun by the Sea Half Marathon

From $45 Open

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Bagel Run 5K/10K/13.1 LOS ANGELES

Sat, Oct 10 · Los Angeles, CA Los Angeles

Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open

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Bagel Run 5K/10K/13.1 SAN FRANCISCO

Sat, Oct 10 · San Mateo, CA San Mateo

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

From $30 Open

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Bagel Run 5K/10K/13.1 SAN DIEGO

Sat, Oct 10 · San Diego, CA San Diego

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

From $30 Open

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Coffee Lovers Run 5K/10K/13.1 LOS ANGELES

Sat, Oct 10 · Los Angeles, CA Los Angeles

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

From $30 Open

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Coffee Lovers Run 5K/10K/13.1 SAN FRANCISCO

Sat, Oct 10 · San Mateo, CA San Mateo

Family Fun Run 1 Mile5K RegistrationVirtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Coffee Lovers Run 5K/10K/13.1 SAN DIEGO

Sat, Oct 10 · San Diego, CA San Diego

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

From $30 Open

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Coffee Lovers Run 5K/10K/13.1 SACRAMENTO

Sat, Oct 10 · Sacramento, CA Sacramento

Family Fun Run 1 Mile5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Bagel Run 5K/10K/13.1 SACRAMENTO

Sat, Oct 10 · Sacramento, CA Sacramento

Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open

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Bizz Johnson

Sun, Oct 11 · Susanville, CA Susanville

Express 10KExpress Half MarathonMarathon +1

From $55 Open

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Champion Mine Trail Race

Sun, Oct 11 · Nevada City, CA Nevada City

Champion Mine 5K Fun & Fitness Run/WalkChampion Mine 10K Fun & Fitness Race/WalkChampion Mine Trail Race Half Marathon

From $35 Open

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Back to the Future: 88 MPH Dash 5K, 10K & Half

Sat, Oct 17 · Canoga Park, CA Canoga Park

88 MPH Sprint 5KTwin Pines 10KEnchantment Under the Run Half Marathon +1

From $34.99 Open

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2026 - City to the Sea Half Marathon & 5K

Sun, Oct 18 · San Luis Obispo, CA San Luis Obispo

City to the Sea 5KCity to the Sea Half Marathon

From $40 Open

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Lake Hodges Trail Duathlon

Sun, Oct 18 · San Diego, CA San Diego

Trail Duathlon- Run | Bike | Run

From $95 Open

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DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK (BAKERSFIELD)

Sat, Oct 24 · Bakersfield, CA Bakersfield

2 MILE SPEED WALK5K RUN/WALKHALF MARATHON +1

From $25 Open

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Malibu Moves: Half Marathon, 10K, 5K, 1-Mi & 1K

Sat, Oct 24 · Malibu, CA Malibu

5KCharity 5KVirtual 5K +11

From $0 Open

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RunThrough USA Long Beach 5k,10k & Half Marathon Race

Sat, Oct 24 · Long Beach, CA Long Beach

5K (3.1 miles)10K (6.2 Miles)Half Marathon (13.1 Miles)

From $42 Open

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Spooky Shuffle – 5k, 10k, Half Marathon

Sun, Oct 25 · Van Nuys, CA Van Nuys

5k10KHalf Marathon

From $29.5 Open

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The Long Beach Halloween Run 5K. 10K. Half Marathon by Califlow Runs

Sat, Oct 31 · Long Beach, CA Long Beach

5K10KHalf Marathon

From $38.99 Open

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Halloween Trick or Trot Run 5K/10K/13.1 SAN DIEGO

Sat, Oct 31 · San Diego, CA San Diego

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

From $30 Open

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Halloween Trick or Trot Run 5K/10K/13.1 LOS ANGELES

Sat, Oct 31 · 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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PB&J Fuel Run 5K/10K/13.1 SAN DIEGO

Sat, Oct 31 · San Diego, CA San Diego

Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1) +3

From $30 Open

Register →

PB&J Fuel Run 5K/10K/13.1 LOS ANGELES

Sat, Oct 31 · Los Angeles, CA Los Angeles

Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K Registration +3

From $30 Open

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PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO

Sat, Oct 31 · San Francisco, CA San Francisco

Family Fun Run 1 Mile5K Registration5K/10K/13.1 Eco-Registration (No Shirt) +3

From $30 Open

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Halloween Trick or Trot Run 5K/10K/13.1 SACRAMENTO

Sat, Oct 31 · Sacramento, CA Sacramento

Family 1 Mile Fun Run5K RegistrationVirtual Run Registration +3

From $30 Open

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PB&J Fuel Run 5K/10K/13.1 SACRAMENTO

Sat, Oct 31 · Sacramento, CA Sacramento

Family Fun Run 1 MileVirtual Run Registration (5K/10K/13.1)5K Registration +3

From $30 Open

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Halloween Trick or Trot Run 5K/10K/13.1 SAN FRANCISCO

Sat, Oct 31 · San Francisco, CA San Francisco

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

From $30 Open

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DINO DASH

Sun, Nov 1 · Tustin, CA Tustin

2K Fun Run/Walk5K Middle School5K Run/Walk +3

From $0 Open

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Día de Muertos - Viva la Vida - 5K, 10K, and Half Marathon by Califlow Runs

Sun, Nov 1 · Long beach, CA Long beach

1 Miler5K10K +1

From $25 Open

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Beer City Half™ OC

Sat, Nov 7 · Santa Ana, CA Santa Ana

Beer StrollBeat the Beast Beer Mile5k +3

From $25 Open

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RunThrough San Francisco at Crissy Field 5k, 100k & Half Marathon

Sat, Nov 7 · San Francisco, CA San Francisco

5k10kHalf Marathon

From $43.05 Open

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2026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San Diego

Sun, Nov 8 · Coronado, CA Coronado

5K - Duo Racer (Challenged Only)5K Run/Walk10 Mile - Duo Racer (Challenged Only) +8

From $21 Open Closing Soon

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Temecula Half Marathon, 10K, 5K

Sun, Nov 8 · Temecula, CA Temecula

5K Run/Walk10KHalf Marathon +1

From $30 Open

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Friday the 13th Night Race -Deranged Turkey Trot: 5K. 10K. Half Marathon by Califlow Runs

Fri, Nov 13 · Long Beach, CA Long Beach

5K: The Gobble Dash10K: The Stuffing SprintHalf Marathon

From $38.99 Open

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Veterans Day Freedom Run 5K/10K/13.1 SAN DIEGO

Sat, Nov 14 · San Diego, CA San Diego

Family Fun Run 1 Mile5K RegistrationVirtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Run for Mental Health 5K/10K/13.1 SACRAMENTO

Sat, Nov 14 · Sacramento, CA Sacramento

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

From $30 Open

Register →

Veterans Day Freedom Run 5K/10K/13.1 LOS ANGELES

Sat, Nov 14 · Los Angeles, CA Los Angeles

Family Fun Run 1 Mile5K/10K/13.1 Eco-Registration (No Shirt)Virtual Run Registration (5K/10K/13.1) +3

From $30 Open

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Thrive San Diego Half Marathon & 5K

Sat, Nov 14 · San Diego, CA San Diego

Charity 5K - $250 fundraising commitment5KVirtual 5K +4

From $0 Open

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Veterans Day Freedom Run 5K/10K/13.1 SAN FRANCISCO

Sat, Nov 14 · San Francisco, CA San Francisco

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

From $30 Open

Register →