Upcoming Half Marathon Races Near Winchester, CA

Reindeer Run 5k, 10k, 15k, Half Marathon

Riverside, CA

Sunday, December 21st, 2025

Featured

15K

10K

5K

View details for race Reindeer Run 5k, 10k, 15k, Half Marathon

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Citrus Heritage Run

Riverside, CA

Saturday, January 10th, 2026

Half

10K

5K

View details for race Citrus Heritage Run

San Diego 50 & Trail Runs

Escondido, CA

Saturday, January 10th, 2026

Ultra

Marathon

Half

Trail

Fast

View details for race San Diego 50 & Trail Runs

Teaching & Learning Collaborative Charity Group...

Anaheim, CA

Friday, January 30th, 2026

5K

10K

Half

View details for race Teaching & Learning Collaborative Charity Group Registration (2026 Disneyland® Half Marathon Weekend)

2026 Disneyland® Half Marathon Weekend

Anaheim, CA

Friday, January 30th, 2026

5K

10K

Half

View details for race 2026 Disneyland® Half Marathon Weekend

Palm Desert 1/2 Marathon & 5K

Palm Desert, CA

Sunday, February 15th, 2026

Half

5K

Fast

View details for race Palm Desert 1/2 Marathon & 5K

Spring Equinox 5k, 10k, 15k, Half Marathon

Anaheim, CA

Sunday, March 22nd, 2026

15K

Half

10K

View details for race Spring Equinox 5k, 10k, 15k, Half Marathon

Bedrock Valley Trail Runs

Hemet, CA

Saturday, April 11th, 2026

Marathon

Half

15K

Trail

Fast

View details for race Bedrock Valley Trail Runs

The 2026 Hoag OC Marathon Running Festival (Exp...

Costa Mesa, CA

Saturday, May 2nd, 2026

5K

Half

Marathon

View details for race The 2026 Hoag OC Marathon Running Festival (Expo Registration)

The Hoag OC Marathon Running Festival

Costa Mesa, CA

Saturday, May 2nd, 2026

5K

Half

Marathon

View details for race The Hoag OC Marathon Running Festival

Laguna Hills Memorial Day Half Marathon, 5K & 10K

Laguna Hills, CA

Monday, May 25th, 2026

Half

10K

5K

View details for race Laguna Hills Memorial Day Half Marathon, 5K & 10K

71st Annual Fontana Days Run

Fontana, CA

Saturday, June 6th, 2026

Half

5K

View details for race 71st Annual Fontana Days Run

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

Green Valley Lake, CA

Saturday, August 1st, 2026

5K

10K

Half

Trail

View details for race Green Valley Lake 5k/10k/& Half Marathon

Beer City Half™ OC

Santa Ana, CA

Saturday, November 7th, 2026

Half

10K

5K

View details for race Beer City Half™ OC

Temecula Half Marathon, 10K, 5K

Temecula, CA

Sunday, November 8th, 2026

Half

10K

5K

View details for race Temecula Half Marathon, 10K, 5K

Explore more in Winchester, CA

Distances:

5K 10K Half Marathon Marathon

Months:

December January February

Tags:

Trail Boston Qualifiers Fast Courses

State:

All California races

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