California Races in April

Browse upcoming marathons, half marathons, 5Ks, 10Ks, trail runs, and triathlons happening in April.

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Running & Triathlon Races

April 3, 2027

IRONMAN 70.3 Oceanside

April 3, 2027

Golden Gate Headlands Marathon, Half Marathon & 10K

April 3, 2027

Sierra Azul Trail Challenge

April 3, 2027

Bedrock Valley Trail Runs

April 3, 2027

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

April 3, 2027

American River

April 4, 2027

Modesto Marathon, Half Marathon, 10k & 5k

April 4, 2027

Bakersfield Marathon

April 4, 2027

Creek Cut Wine Run 5k

April 9, 2027

Ragnar Road SoCal

April 10, 2027

San Diego Beach & Bay Half Marathon

April 10, 2027

Wise Villa Wine Run 5k

April 10, 2027

ICE Breaker Triathlon

April 10, 2027

41st Nature Made Great Race: Half Marathon, 5K, 10K, 15K, 10M, 1M

April 11, 2027

2027 Cal Tri Lake Perris

April 17, 2027

Nelson Family Vineyards Wine Run 5k

April 17, 2027

Horseshoe Lake Trail Run

April 17, 2027

Mountains 2 Beach Marathon and Half

April 18, 2027

Viansa Wine Run 5k

April 18, 2027

Silver Moon Race: Kings River

April 18, 2027

Millerton Lake Crows Nest Triathlon, 5k & 10k

April 22, 2027

The Canyons Endurance Runs

April 24, 2027

Mt. Tam Wild Boar Half Marathon

April 24, 2027

Hacienda Hills Trail Run

April 24, 2027

SPASM Lake Chabot Trail Run

April 24, 2027

Nail the Rail Half Marathon, 10K & 5K

April 25, 2027

Big Sur International Marathon 2027

April 25, 2027

Napa Spring Half Marathon

April 25, 2027

Grapes of Wrath Triathlon, 5k & 10k

April 25, 2027

Orange County Multi-Sport Festival

April 25, 2027

Mermaid Run San Francisco