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Races in Ontario, CA

Running races in or near Ontario, CA

Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more

See below for a frequently-updated, comprehensive list of upcoming running events in the local Ontario, CA area. Races listed here include both walking and running events of various distances — from 1-milers, to 5Ks, to marathons, and everything else in between.

Fleet Feet Sports

La Habra Run 50-Yard Diapper Dash Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

La Habra Run 5K Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

Blacklight Run - Free Registration - Standard Registration

Organization: Cool Events LLC

Date of Race: 11-12-2022

Description: The Blacklight Run is none other than the brightest, most fun ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 03-05-2022

Description: If youve done a traditional 5K, you know they can be ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 03-05-2022

Description: If youve done a traditional 5K, you know they can be ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 04-16-2022

Description: If youve done a traditional 5K, you know they can be ...

La Habra Run 5K Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

Foam Glow 5K - Free Registration - Standard ...

Organization: Cool Events LLC

Date of Race: 04-16-2022

Description: Foam Glow 5K is a fun filled experience exposing runners to ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 04-09-2022

Description: If youve done a traditional 5K, you know they can be ...

La Habra Run 50-Yard Diapper Dash Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

La Habra Run 50-Yard Diapper Dash Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 04-16-2022

Description: If youve done a traditional 5K, you know they can be ...

Foam Glow 5K - Free Registration - Standard ...

Organization: Cool Events LLC

Date of Race: 04-23-2022

Description: Foam Glow 5K is a fun filled experience exposing runners to ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 04-09-2022

Description: If youve done a traditional 5K, you know they can be ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 04-09-2022

Description: If youve done a traditional 5K, you know they can be ...

La Habra Run 1K Kiddy Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

La Habra Run 1K Kiddy Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

Bubble Run - Free Registration - Individual Registration ...

Organization: Cool Events LLC

Date of Race: 04-16-2022

Description: If youve done a traditional 5K, you know they can be ...

La Habra Run 5K Runners

Organization: City of La Habra Community Services Department

Date of Race: 03-12-2022

Description: DescriptionThe #LaHabraRaces " Move More, Be Healthy, Family Fun Run" will ...

10K - Individual Age group/open

Organization: Mainly Marathons

Date of Race: 07-18-2022

Description: World's Best Marathon Half Series! No Time Limits Great Food ...

Half Marathon - Individual Age group/open

Organization: Mainly Marathons

Date of Race: 07-18-2022

Description: World's Best Marathon Half Series! No Time Limits Great Food ...

Half Marathon - Individual Age group/open

Organization: Mainly Marathons

Date of Race: 07-20-2022

Description: World's Best Marathon Half Series! No Time Limits Great Food ...

Marathon - Individual Age group/open

Organization: Mainly Marathons

Date of Race: 07-20-2022

Description: World's Best Marathon Half Series! No Time Limits Great Food ...

Half Marathon - Individual Age group/open

Organization: Mainly Marathons

Date of Race: 07-19-2022

Description: World's Best Marathon Half Series! No Time Limits Great Food ...

5K - Individual Age group/open

Organization: Mainly Marathons

Date of Race: 07-19-2022

Description: World's Best Marathon Half Series! No Time Limits Great Food ...

Lock Laces

Complete list of running events in and near Ontario, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.


More information about Ontario

About Ontario

Ontario (CA) is a city in San Bernardino County with an estimated population of 163,924.[4]

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In 2015, the 5K maintained the #1 position of all race distances with 7.6 million finishers (U.S.).

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