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Half Marathons in California

California has 102 upcoming half marathons scheduled for 2026. That is the highest event count for half marathons of any state. The calendar runs year-round — busiest in June, August, and October, quietest in January through March. Long Beach is the busiest city with 58 races, ahead of San Diego (4) and Huntington Beach (4).

Half marathons by month in California

Jun (24) · Oct (13) · Aug (11) · Nov (10) · Dec (10) · Jul (9) · Sep (5) · Jan (4) · Feb (4) · Mar (4) · Apr (4) · May (4)

Showing 24 of 102

Phoenix Rising 5k, 10k, 15k, Half Marathon
Running

Phoenix Rising 5k, 10k, 15k, Half Marathon

June 13, 2026
Los Angeles, CA
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Running

WICKED FAST MARATHON & HALF MARATHON SAN DIEGO

El Cajon, CA

Running

WICKED FAST MARATHON & HALF MARATHON SAN DIEGO

June 13, 2026
El Cajon, CA
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WICKED FAST MARATHON & HALF MARATHON SAN DIEGO
Running

WICKED FAST MARATHON & HALF MARATHON SAN DIEGO

June 13, 2026
El Cajon, CA
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Rare Strides 5k, 10k, 15k, Half Marathon
Running

Rare Strides 5k, 10k, 15k, Half Marathon

June 14, 2026
Long Beach, CA
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Rare Strides 5k, 10k, 15k, Half Marathon
Running

Rare Strides 5k, 10k, 15k, Half Marathon

June 14, 2026
Long Beach, CA
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Running

Good Vibes Run – 5K, 10K, 10M, and Half Marathon

Long Beach, CA

Running

Good Vibes Run – 5K, 10K, 10M, and Half Marathon

June 14, 2026
Long Beach, CA
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Good Vibes Run – 5K, 10K, 10M, and Half Marathon
Running

Good Vibes Run – 5K, 10K, 10M, and Half Marathon

June 14, 2026
Long Beach, CA
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Old Zoo Half Marathon
Running

Old Zoo Half Marathon

June 14, 2026
Los Angeles, CA
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Running

Wine Country Half Marathon

Napa/Sonoma, CA

Running

Wine Country Half Marathon

June 15, 2026
Napa/Sonoma, CA
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Summer Solstice Run : 5K.10K. Half Marathon –by Califlow Runs
Running

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

June 20, 2026
Long Beach, CA
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Running

Old Zoo Half Marathon

Los Angeles, CA

Running

Old Zoo Half Marathon

June 20, 2026
Los Angeles, CA
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Running

Happy Father's Day 5k, 10k, 15k, Half Marathon

Van Nuys, CA

Running

Happy Father's Day 5k, 10k, 15k, Half Marathon

June 20, 2026
Van Nuys, CA
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Running

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

Long Beach, CA

Running

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

June 20, 2026
Long Beach, CA
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2026 Presidio Half Marathon, 10K, & 5K
Running

2026 Presidio Half Marathon, 10K, & 5K

June 21, 2026
San Francisco, CA
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Happy Father's 5k, 10k, 15k, Half Marathon
Running

Happy Father's 5k, 10k, 15k, Half Marathon

June 21, 2026
Long Beach, CA
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Father’s Day Classic – 5K, 10K, 10-Miler, and Half Marathon
Running

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

June 21, 2026
Long Beach, CA
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The Rock the Loch 5K/10K/Half Marathon (LIVE or Virtual)
Running

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

June 26, 2026
Castro Valley, CA
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Goleta Beach Half Marathon, 10K, 5K, Kid's 1-Mile
Running

Goleta Beach Half Marathon, 10K, 5K, Kid's 1-Mile

June 27, 2026
Goleta, CA
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Running

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

Long Beach, CA

Running

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

June 27, 2026
Long Beach, CA
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Running

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

Long Beach, CA

Running

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

June 27, 2026
Long Beach, CA
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Summertime in the LBC 5K, 10K, & Half Marathon by Califlow Runs
Running

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

June 27, 2026
Long Beach, CA
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Alien Run – 5K, 10K, 10M, and Half Marathon
Running

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

June 28, 2026
Long Beach, CA
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Running

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

Long Beach, CA

Running

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

June 28, 2026
Long Beach, CA
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Stars & Stripes 5k, 10k, 15k, Half Marathon
Running

Stars & Stripes 5k, 10k, 15k, Half Marathon

July 3, 2026
Long Beach, CA
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Top Cities for Half Marathons in California

Long Beach (58)

Half Marathons in Nearby States

ArizonaNevadaOregon

Frequently asked questions

How long is a half marathon?▾
A half marathon is 13.1 miles (21.1 kilometers). It is one of the most popular race distances in the US, attracting over 2 million finishers annually. Browse half marathons on RACE to find one near you.
How should I train for my first half marathon?▾
Most beginner training plans are 10-12 weeks long and gradually build your weekly mileage. A typical plan includes 3-4 runs per week with one long run that peaks around 10-11 miles before race day.
What is a good half marathon time?▾
The average US half marathon finish time is about 2 hours 10 minutes. Beginners often aim for under 2:30, while competitive runners target sub-1:45. Focus on finishing strong rather than a specific pace for your first race.
What are the biggest half marathons in the US?▾
The largest include the United Airlines NYC Half, RBC Brooklyn Half, Disney Princess Half Marathon, and the Rock 'n' Roll series events in Las Vegas, Nashville, and San Diego. You can find all of these on RACE.
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