Running races in or near Fairfax, CA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Fairfax, 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.
Running
Organization: UNIVERSITY OF SAN FRANCISCO
Date of Race: 08-19-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Running
Organization: UNIVERSITY OF SAN FRANCISCO
Date of Race: 08-19-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Running-5K - Individual
Organization: DSE Runners
Date of Race: 09-07-2025
Description: Out and back course through Mountain Lake Park and the Presidio, ...
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Running-4 Miles - Individual
Organization: DSE Runners
Date of Race: 09-14-2025
Description: Scenic, challenging loop course. Starts and finishes at the mini-park located ...
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Running-Half marathon - Half Maraton
Organization: DSE Runners
Date of Race: 09-21-2025
Description: Join us for the best bargain half marathon (aka 21.1KM race) ...
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Running-4.5 Miles - 4.5 Mile Run
Organization: DSE Runners
Date of Race: 09-21-2025
Description: Join us for the best bargain half marathon (aka 21.1KM race) ...
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Running-10K - Individual Ages 13-17
Organization: DSE Runners
Date of Race: 08-31-2025
Description: Flat, fast, out and back course along paved bike path. Runs ...
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Running-10K - Individual Ages 18 & Over
Organization: DSE Runners
Date of Race: 08-31-2025
Description: Flat, fast, out and back course along paved bike path. Runs ...
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Running-5K - Individual Age group/open
Organization: Double Road Race Federation
Date of Race: 08-03-2025
Description: Golden Gate 10K, 5K, 3K, Double 8K Run/Walk offers ...
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Running-8K - Individual Age group/open
Organization: Double Road Race Federation
Date of Race: 08-03-2025
Description: Golden Gate 10K, 5K, 3K, Double 8K Run/Walk offers ...
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Running-10K - Individual Age group/open
Organization: Double Road Race Federation
Date of Race: 08-03-2025
Description: Golden Gate 10K, 5K, 3K, Double 8K Run/Walk offers ...
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Running-5K Ages 18 & Over - Individual Age ...
Organization: DSE Runners
Date of Race: 08-03-2025
Description: Let's Go DSE--a new path! Literally! Start in Crane Cove ...
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12K Centipede - CENTIPEDE → Create a Centipede
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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12K Centipede - CENTIPEDE → Create a Centipede ...
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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12K Centipede - CENTIPEDE → Join a Team
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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12K Virtual Runner - 12K Virtual Runner
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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12K Individual Runner - Non-participating team captain
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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Non-participating team captain - Non-participating team captain
Organization: Motiv Sports US
Date of Race: 11-02-2025
Description: The Golden Gate Half is more than just a 13.1-mile run ...
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12K Individual Runner - 12K Individual
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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12K Individual Runner - 12K Individual + 3K ...
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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12K Virtual Runner - 15K Breaker Bonus
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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2026 Bay to Breakers
Organization: Motiv Sports US
Date of Race: 05-17-2026
Description: This historic 12k fun run through the streets of San Francisco ...
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Stern Grove 4 mile
Organization: DSE Runners
Date of Race: 09-14-2025
Description: Scenic, challenging loop course. Starts and finishes at the mini-park located ...
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Lake Merced ½ Marathon and 4.5 Mile Run
Organization: DSE Runners
Date of Race: 09-21-2025
Description: Join us for the best bargain half marathon (aka 21.1KM race) ...
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Complete list of running events in and near Fairfax, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Fairfax
About Fairfax
Fairfax (CA) is a town in Marin County with an estimated population of 7,441.[4]
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Did you know?
The number of U.S. marathon finishers declined from 2014 to 2015 approximately 8 percent.
