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Races in Montclair, CA

Running races in or near Montclair, CA

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

See below for a frequently-updated, comprehensive list of upcoming running events in the local Montclair, 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.

FitnessMatchmaker.com

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 09-07-2025

Description: It's time for our Hot to Trot 5k, 10k, ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 10-26-2025

Description: Come on out and join us for our Monster ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 10-12-2025

Description: It's time for our Haunted Heroes 5k, 10k, 15k, ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 10-12-2025

Description: It's time for our Haunted Heroes 5k, 10k, 15k, ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 10-12-2025

Description: It's time for our Haunted Heroes 5k, 10k, 15k, ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 12-21-2025

Description: It's time for our Reindeer Run 5k, 10k, 15k, ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 12-21-2025

Description: It's time for our Reindeer Run 5k, 10k, 15k, ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 12-21-2025

Description: It's time for our Reindeer Run 5k, 10k, 15k, ...

Running-10K - Individual Age group/open

Organization: ABWR

Date of Race: 10-26-2025

Description: Come on out and join us for our Monster ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 10-26-2025

Description: Come on out and join us for our Monster ...

Running-15K - Individual Age group/open

Organization: ABWR

Date of Race: 09-07-2025

Description: It's time for our Hot to Trot 5k, 10k, ...

Running-5K - Individual Age group/open

Organization: ABWR

Date of Race: 09-07-2025

Description: It's time for our Hot to Trot 5k, 10k, ...

Running-Half Marathon - Individual Age group/open

Organization: ABWR

Date of Race: 12-21-2025

Description: It's time for our Reindeer Run 5k, 10k, 15k, ...

Running-Half Marathon - Individual Age group/open

Organization: ABWR

Date of Race: 10-12-2025

Description: It's time for our Haunted Heroes 5k, 10k, 15k, ...

Running-Half Marathon - Individual Age group/open

Organization: ABWR

Date of Race: 09-07-2025

Description: It's time for our Hot to Trot 5k, 10k, ...

Running-Half marathon - Individual Age group/open

Organization: ABWR

Date of Race: 10-26-2025

Description: Come on out and join us for our Monster ...

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

Organization: ABWR

Date of Race: 10-26-2025

Description: Come on out and join us for our Monster ...

Bubble Run - Exclusive VIP Registration- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ ...

Organization: Viral Run

Date of Race: 11-15-2025

Description: If you’ve done a traditional 5K, you know ...

Bubble Run - Value Registrations- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶5̶4̶.̶9̶5̶

Organization: Viral Run

Date of Race: 07-19-2025

Description: If you’ve done a traditional 5K, you know they ...

Haunted Hereoes 5k, 10k, 15k, Half Marathon

Organization: ABWR

Date of Race: 10-12-2025

Description: It's time for our Haunted Heroes 5k, 10k, 15k, ...

Bubble Run | Pomona

Organization: Viral Run

Date of Race: 07-19-2025

Description: If you’ve done a traditional 5K, you know they ...

Hot to Trot 5k, 10k, 15k, Half Marathon

Organization: ABWR

Date of Race: 09-07-2025

Description: It's time for our Hot to Trot 5k, 10k, ...

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

Organization: ABWR

Date of Race: 12-21-2025

Description: It's time for our Reindeer Run 5k, 10k, 15k, ...

Bubble Run - Exclusive VIP Registration- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ ...

Organization: Viral Run

Date of Race: 07-19-2025

Description: If you’ve done a traditional 5K, you know they ...

Bubble Run - Value Registrations- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶5̶4̶.̶9̶5̶

Organization: Viral Run

Date of Race: 11-15-2025

Description: If you’ve done a traditional 5K, you know ...

Road Runner Sports

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


More information about Montclair

About Montclair

Montclair (CA) is a city in San Bernardino County with an estimated population of 36,664.[4]

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In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.

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