264 Upcoming 5K Races Near Costa Mesa, CA

Ascot Hills Challenge 5K

Los Angeles, CA

Saturday, September 26th, 2026

Trail

View details for race Ascot Hills Challenge 5K

The Christian K. West Youth Foundation's 4th An...

Lake View Terrace, CA

Sunday, September 27th, 2026

View details for race The Christian K. West Youth Foundation's 4th Annual Memorial Run

SoCal's Tiki Beach 5K & 10K Run/Walk

Huntington Beach, CA

Sunday, September 27th, 2026

10K

Fast

View details for race SoCal's Tiki Beach 5K & 10K Run/Walk

Take Me to Your Pizza : Alien Dash 5K. 10K. Hal...

Long Beach, CA

Sunday, September 27th, 2026

10K

Half

Fast

View details for race Take Me to Your Pizza : Alien Dash 5K. 10K. Half Marathon by Califlow Runs

Organize a race? Get it in front of thousands of runners.

Add it free Feature it

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

Long Beach, CA

Sunday, September 27th, 2026

10K

10 Miles

View details for race The Retro Run – 5K, 10k, 10m, and Half Marathon

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

Riverside, CA

Sunday, September 27th, 2026

Half

10K

View details for race Golden Strides 5k, 10k, 15k, Half Marathon

Bimbo Global Race - Los Angeles

Pasadena, CA

Sunday, September 27th, 2026

10K

View details for race Bimbo Global Race - Los Angeles

Cypress Run

Cypress, CA

Saturday, October 3rd, 2026

View details for race Cypress Run

Spooky Dash 5k, 10k, 15k, Half Marathon

Long beach, CA

Saturday, October 3rd, 2026

Half

15K

10K

View details for race Spooky Dash 5k, 10k, 15k, Half Marathon

Cabrillo Beach 5K/10K

San Pedro, CA

Saturday, October 3rd, 2026

10K

View details for race Cabrillo Beach 5K/10K

Walk for Water 5K Los Angeles

Los Angeles, CA

Saturday, October 3rd, 2026

Trail

View details for race Walk for Water 5K Los Angeles

Palos Verdes Trails 5K

Palos Verdes Peninsula, CA

Sunday, October 4th, 2026

View details for race Palos Verdes Trails 5K

2026 2XU Long Beach Marathon & Half Marathon

Long Beach, CA

Saturday, October 10th, 2026

Half

Marathon

View details for race 2026 2XU Long Beach Marathon & Half Marathon

Long Beach Race for Rare 5K Run & Walk Event

Long Beach, CA

Saturday, October 10th, 2026

1 Mile

View details for race Long Beach Race for Rare 5K Run & Walk Event

Bubble Run | Irvine 2026

Silverado, CA

Saturday, October 10th, 2026

View details for race Bubble Run | Irvine 2026

Witch Way to the Polls 2026

Los Angeles, CA

Sunday, October 11th, 2026

View details for race Witch Way to the Polls 2026

Montebello Heritage 5K/10K

Montebello, CA

Sunday, October 11th, 2026

10K

View details for race Montebello Heritage 5K/10K

Dam Spooky 5k, 10k, 15k, Half Marathon

Lake View Terrace, CA

Saturday, October 17th, 2026

Half

15K

View details for race Dam Spooky 5k, 10k, 15k, Half Marathon

2026 Boyle Heights 5K Run/Walk

Los Angeles, CA

Saturday, October 17th, 2026

View details for race 2026 Boyle Heights 5K Run/Walk

11th Annual Combat Cancer Walk

Corona, CA

Saturday, October 17th, 2026

View details for race 11th Annual Combat Cancer Walk

Howl-O-Ween Doggie 5K, 1 Miler by Califlow Runs

Long Beach, CA

Saturday, October 17th, 2026

1 Mile

Fast

View details for race Howl-O-Ween Doggie 5K, 1 Miler by Califlow Runs

Night of the Living Runners – 5K, 10K, 10-Miler...

Long Beach, CA

Saturday, October 17th, 2026

10K

10 Miles

View details for race Night of the Living Runners – 5K, 10K, 10-Miler, Half Marathon

POMONA 5K & 10K

Pomona, CA

Saturday, October 17th, 2026

View details for race POMONA 5K & 10K

Pre Registration 2026 - Beverly Hills Run of th...

Beverly Hills, CA

Sunday, October 18th, 2026

View details for race Pre Registration 2026 - Beverly Hills Run of the Stars

LIVE LIKE JOJO SUPERHERO EXPERIENCE 2026

San Clemente, CA

Sunday, October 18th, 2026

View details for race LIVE LIKE JOJO SUPERHERO EXPERIENCE 2026

Witches Wave - Halloween Run 5K, 10K, and Half ...

Huntington Beach, CA

Sunday, October 18th, 2026

10K

Half

Fast

View details for race Witches Wave - Halloween Run 5K, 10K, and Half Marathon

2026 Cal Tri LA - 10.18.26

Playa Del Rey, CA

Sunday, October 18th, 2026

10K

View details for race 2026 Cal Tri LA - 10.18.26

Beverly Hills Run of the Stars: 2026

Beverly Hills, CA

Sunday, October 18th, 2026

View details for race Beverly Hills Run of the Stars: 2026

RunThrough USA Long Beach 5k,10k & Half Maratho...

Long Beach, CA

Saturday, October 24th, 2026

10K

Half

View details for race RunThrough USA Long Beach 5k,10k & Half Marathon Race

Run4Recovery 5K Run/Walk

Covina, CA

Saturday, October 24th, 2026

View details for race Run4Recovery 5K Run/Walk

Monster Dash 5k, 10k, 15k, Half Marathon

Long beach, CA

Saturday, October 24th, 2026

Half

10K

View details for race Monster Dash 5k, 10k, 15k, Half Marathon

SoCal's Sunset Trick or Trot 5k/10K - Halloween...

Huntington Beach, CA

Saturday, October 24th, 2026

10K

Fast

View details for race SoCal's Sunset Trick or Trot 5k/10K - Halloween Race

Vaquero Strong 5K

IRVINE, CA

Saturday, October 24th, 2026

View details for race Vaquero Strong 5K

Hop Skip and Splash 5K Fun Run/Walk

Huntington Beach, CA

Sunday, October 25th, 2026

View details for race Hop Skip and Splash 5K Fun Run/Walk

1 IN 5K Dyslexia Dash

Los Angeles, CA

Sunday, October 25th, 2026

Trail

View details for race 1 IN 5K Dyslexia Dash

Sharsheret West Coast Dash

Playa Del Rey, CA

Sunday, October 25th, 2026

10K

View details for race Sharsheret West Coast Dash

Trick or Trot 5K, 10K, and Half Marathon by Cal...

Long Beach, CA

Sunday, October 25th, 2026

10K

Half

View details for race Trick or Trot 5K, 10K, and Half Marathon by Califlow Runs

Whittier Spooktacular 5K

Whittier, CA

Saturday, October 31st, 2026

View details for race Whittier Spooktacular 5K

The Long Beach Halloween Run 5K. 10K. Half Mara...

Long Beach, CA

Saturday, October 31st, 2026

10K

Half

Fast

View details for race The Long Beach Halloween Run 5K. 10K. Half Marathon by Califlow Runs

Northgate Market 5K

Anaheim, CA

Saturday, October 31st, 2026

View details for race Northgate Market 5K

Howl-o-ween Doggie Dash 5K

Los Angeles, CA

Saturday, October 31st, 2026

Trail

Fast

View details for race Howl-o-ween Doggie Dash 5K

Happy Halloween 5k, 10k, 15k, Half Marathon

Long beach, CA

Saturday, October 31st, 2026

15K

10K

View details for race Happy Halloween 5k, 10k, 15k, Half Marathon

2026 Optimism Cal Tri Newport Dunes - 11.1.26

Newport Beach, CA

Sunday, November 1st, 2026

10K

View details for race 2026 Optimism Cal Tri Newport Dunes - 11.1.26

Viva la Vida - Día de los Muertos 5K, 10K, and ...

Long beach, CA

Sunday, November 1st, 2026

10K

Half

View details for race Viva la Vida - Día de los Muertos 5K, 10K, and Half Marathon

Luz y Vida 5k, 10k, 15k, Half Marathon

Riverside, CA

Sunday, November 1st, 2026

Half

10K

View details for race Luz y Vida 5k, 10k, 15k, Half Marathon

Las Calaveritas 10 Miler

Lake View Terrace, CA

Sunday, November 1st, 2026

10 Miles

View details for race Las Calaveritas 10 Miler

DINO DASH

Tustin, CA

Sunday, November 1st, 2026

View details for race DINO DASH

2026 Kaiser Permanente Get Fit Festival

Irvine, CA

Saturday, November 7th, 2026

Ultra

View details for race 2026 Kaiser Permanente Get Fit Festival

Beer City Half™ OC

Santa Ana, CA

Saturday, November 7th, 2026

Half

10K

View details for race Beer City Half™ OC

RUN FOR FREEDOM

San Dimas, CA

Saturday, November 7th, 2026

View details for race RUN FOR FREEDOM

Prev 1 24 5 Next

Explore more in Costa Mesa, CA

Jump straight to races by distance, month, or type.

Distance

5K 10K Half Marathon Marathon

Month

July August September

Race type

Trail Boston Qualifiers Fast Courses

Run clubs

Run clubs in Costa Mesa

Nearby

Fountain Valley Newport Beach Huntington Beach Irvine Anaheim Long Beach All California races