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-5K - Runner
Organization: Dock Street Productions
Date of Race: 10-18-2025
Description: Registration @ 7:30 | Race starts @ 8:30 This FREE event ...
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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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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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General Entry - 5K - Individual
Organization: GF Test
Date of Race: 04-26-2026
Description: Event details and schedule
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5K - DetermiNation 5K Athlete
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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Virtual - Half Marathon
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 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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2025 Golden Gate Half Marathon & 5K
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 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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Half Marathon - Individual
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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5K - Individual
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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Half Marathon - DetermiNation Half Marathon Athlete
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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Virtual - 5K
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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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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GoFundraise Test Event 2025 - Stephanie (single-charity)
Organization: GF Test
Date of Race: 04-26-2026
Description: Event details and schedule
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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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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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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?
Historically, more marathons are run in the month of October than any other month (in the U.S.).
