Florida Keys
Upcoming Races in Marathon, FL
Next up: Grassy Key Paddle Battle on September 26, 2026. Every race below links to registration.
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Upcoming Race
calendar_month September 2026
Races Near Marathon
Marathon Race FAQs
What races are coming up in Marathon, FL? expand_more
Marathon has 1 upcoming race. The next one is Grassy Key Paddle Battle on September 26, 2026. Every listing above links to registration.
Are there 5K races in Marathon? expand_more
Not at the moment. Check the nearby cities below or browse all Florida 5K races.
How do I register for a race in Marathon? expand_more
Open any race and click Register to reach the official registration page, usually on RunSignUp. Fees go up as race day gets closer, so signing up early saves money.
When is race season in Marathon? expand_more
Most Marathon races fall between October and March, when mornings are cool and dry. Summer events start early to beat the heat, and many switch to evening or virtual formats.
Racing in Marathon, Florida
This is every Marathon race with registration open, updated daily. Courses here are flat, so Marathon is a good place to chase a personal best at any distance.
Register early. Most races raise their entry fee two or three times before race day, and popular events sell out. Every card above goes straight to the official registration page.
See everything running in Marathon, browse the full Florida calendar with filters, or submit your race to get listed for free.