Upcoming Races Near Oceanside, CA in May, 2026

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

Costa Mesa, CA

Saturday, May 2nd, 2026

Featured

5K

Half

Marathon

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

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Abrazo 5K Walk & 10K Run 2026

San Ysidro, CA

Saturday, May 2nd, 2026

10K

5K

View details for race Abrazo 5K Walk & 10K Run 2026

Muddy Dash | San Diego

Valley Center, CA

Saturday, May 2nd, 2026

5K

View details for race Muddy Dash | San Diego

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

Project Youth OC - 2025 OC Marathon

Costa Mesa, CA

Saturday, May 2nd, 2026

View details for race Project Youth OC - 2025 OC Marathon

Hoag Kids Run The OC

Costa Mesa, CA

Saturday, May 2nd, 2026

1 Mile

View details for race Hoag Kids Run The OC

SoCal's Cinco De Miles 5K and 5 MILE

Huntington Beach, CA

Saturday, May 2nd, 2026

5K

1 Mile

View details for race SoCal's Cinco De Miles 5K and 5 MILE

2026 Spring Sprint Triathlon and SD Tri Series 5K

San Diego, CA

Sunday, May 3rd, 2026

5K

View details for race 2026 Spring Sprint Triathlon and SD Tri Series 5K

5inco De Miles

Chula Vista, CA

Sunday, May 3rd, 2026

5K

1 Mile

View details for race 5inco De Miles

NIGHT NATION RUN - ORANGE COUNTY

Costa Mesa, CA

Saturday, May 9th, 2026

View details for race NIGHT NATION RUN - ORANGE COUNTY

Dream Run

Irvine, CA

Saturday, May 9th, 2026

5K

View details for race Dream Run

MVRRC 7th Annual Mother's Day 5K fun Run event

Perris, CA

Sunday, May 10th, 2026

5K

1 Mile

View details for race MVRRC 7th Annual Mother's Day 5K fun Run event

Hobby Joggers

Temecula, CA

Saturday, May 16th, 2026

5K

1 Mile

View details for race Hobby Joggers

The Sports Spectacular 5K/10K

Huntington Beach, CA

Saturday, May 16th, 2026

5K

10K

View details for race The Sports Spectacular 5K/10K

La Jolla Half Marathon & 5K

San Diego, CA

Saturday, May 16th, 2026

Half

10K

5K

View details for race La Jolla Half Marathon & 5K

Wild West Fun Run Series

Temecula, CA

Saturday, May 16th, 2026

5K

View details for race Wild West Fun Run Series

The Navy's 39th Bay Bridge Run/Walk

San Diego, CA

Sunday, May 17th, 2026

10K

Fast

View details for race The Navy's 39th Bay Bridge Run/Walk

Great Donut Run / Walk 5k

Irvine, CA

Sunday, May 17th, 2026

1 Mile

5K

Fast

View details for race Great Donut Run / Walk 5k

Memorial Day 5K, 10K & Kids 1 Mile Run/Walk

Hemet, CA

Monday, May 25th, 2026

5K

10K

1 Mile

Fast

View details for race Memorial Day 5K, 10K & Kids 1 Mile Run/Walk

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

7th Annual SJC Community Run

San Juan Capistrano, CA

Saturday, May 30th, 2026

5K

View details for race 7th Annual SJC Community Run

Explore more in Oceanside, CA

Distances:

5K 10K Half Marathon Marathon

Months:

March April May

Tags:

Trail Boston Qualifiers Fast Courses

State:

All California races

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