Running races in or near Seatac, WA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Seatac, WA 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 - Youth
Organization: Lakes Cross Country Booster Club
Date of Race: 12-05-2026
Description: Event details and schedule
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Running-5K - Open
Organization: Lakes Cross Country Booster Club
Date of Race: 12-05-2026
Description: Event details and schedule
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Running-1 Mile - Elementary
Organization: Lakes Cross Country Booster Club
Date of Race: 12-05-2026
Description: Event details and schedule
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Muddy Dash - Exclusive VIP Registration - ...
Organization: Viral Run
Date of Race: 07-24-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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Lakewood Jingle Bell Run
Organization: Lakes Cross Country Booster Club
Date of Race: 12-05-2026
Description: Event details and schedule
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Turkey Trot
Organization: Sammamish Running
Date of Race: 11-26-2026
Description: Enjoy the brisk air Fall Event Turkey Trot at the prestigious ...
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Turkey Trot - 5 mile technical Trail Race
Organization: Sammamish Running
Date of Race: 11-26-2026
Description: Enjoy the brisk air Fall Event Turkey Trot at the prestigious ...
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Turkey Trot - 2k Kids run
Organization: Sammamish Running
Date of Race: 11-26-2026
Description: Enjoy the brisk air Fall Event Turkey Trot at the prestigious ...
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Muddy Dash - VALUE REGISTRATION - R̶e̶g̶u̶l̶a̶r̶ ...
Organization: Viral Run
Date of Race: 07-24-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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Turkey Trot - 5k dash
Organization: Sammamish Running
Date of Race: 11-26-2026
Description: Enjoy the brisk air Fall Event Turkey Trot at the prestigious ...
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Bubble Run - Exclusive VIP Registration- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ ...
Organization: Viral Run
Date of Race: 08-15-2027
Description: If you’ve done a traditional 5K, you know they ...
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Bubble Run | Seattle 2027
Organization: Viral Run
Date of Race: 08-15-2027
Description: If you’ve done a traditional 5K, you know they ...
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Turkey Trot - 10 mile Technical Trail Race
Organization: Sammamish Running
Date of Race: 11-26-2026
Description: Enjoy the brisk air Fall Event Turkey Trot at the prestigious ...
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Muddy Dash | Seattle 2027
Organization: Viral Run
Date of Race: 07-24-2027
Description: Muddy Dash is not your average mud run! Get ready for ...
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Turkey Trot - 10k race
Organization: Sammamish Running
Date of Race: 11-26-2026
Description: Enjoy the brisk air Fall Event Turkey Trot at the prestigious ...
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Bubble Run - Value Registrations- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶5̶4̶.̶9̶5̶
Organization: Viral Run
Date of Race: 08-15-2027
Description: If you’ve done a traditional 5K, you know they ...
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Green Fleet 2026
Organization: Gig Harbor Junior Sailing
Date of Race: 11-07-2026
Description: If you’ve done a traditional 5K, you know they ...
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No Sun Fun Run (1-30-27)
Organization: Pierce County Parks and Recreation
Date of Race: 01-30-2027
Description: DescriptionRain, sleet, or snow, the No Sun Fun Run is on! ...
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The Great Puzzle-Off: Ugly Sweater Edition
Organization: PenMet Parks
Date of Race: 12-18-2026
Description: DescriptionJoin us for our festive Great Puzzle Off! We’ll have ...
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Amazon Corporate Team Building Event
Organization: Club Scikidz North Seattle
Date of Race: 11-11-2026
Description: Amazon Corp Team Building Event
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Amazon Corporate Team Building Event
Organization: Club Scikidz North Seattle
Date of Race: 11-10-2027
Description: Amazon Corp Team Building Event
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2027 Camp Gilead River Run 5K
Organization: Camp Gilead
Date of Race: 05-31-2027
Description: The River Run 5K is an event to raise money for ...
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Price
Organization: Camp Gilead
Date of Race: 05-31-2027
Description: The River Run 5K is an event to raise money for ...
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Duathlon-10 mile bike, 5 mile run - Virtual ...
Organization: Sammamish Running
Date of Race: 04-24-2027
Description: Join us for one of the first USAT events of the ...
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Duthie Hill Duathlon
Organization: Sammamish Running
Date of Race: 04-24-2027
Description: Join us for one of the first USAT events of the ...
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Complete list of running events in and near Seatac, WA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Seatac
About Seatac
Seatac (WA) is a city in King County with an estimated population of 26,909.[4]
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Did you know?
The number of U.S. marathon finishers declined from 2014 to 2015 approximately 8 percent.
