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    Race calendar

    Running Races in Fort Collins, CO

    19 upcoming races in and around Fort Collins. Run This events are listed first — jump to a specific distance below.

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    Nearby citiesDenverColorado SpringsCentennialArvadaLittletonAuroraWestminsterPuebloBoulderGrand JunctionDurangoWindsor

    19 races

    Sun, Sep 20, 2026

    Fall Equinox

    Fort Collins, CO

    OutsideMarathon5.0 mi

    Thu, Oct 1, 2026

    Segment Traildown

    Fort Collins, CO

    Outside

    Sat, Oct 3, 2026

    Mustang Music 5K

    Fort Collins, CO

    Outside5K1 mile

    Sat, Oct 3, 2026

    Homecoming 5K at Colorado State University

    Fort Collins, CO

    Outside5K

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    Sun, Oct 4, 2026

    OTILLO Swimrun Colorado

    Fort Collins, CO

    Outside

    Sun, Oct 4, 2026

    Rolland Moore Park T&H 4K

    Fort Collins, CO

    Outside2.5 mi

    Sat, Oct 10, 2026

    The Long View Marathon

    Fort Collins, CO

    OutsideMarathon5K

    Sun, Oct 11, 2026

    The Moony Pride 5k

    Fort Collins, CO

    Outside5K

    Sat, Oct 17, 2026

    Blue Sky Trail Marathon & Half Marathon

    Fort Collins, CO

    Outside26.7 mi13.8 mi

    Sun, Nov 1, 2026

    Girls on the Run Northern Colorado Fall 5K

    Fort Collins, CO

    Outside5K

    Sat, Nov 7, 2026

    Colorado 24 Hour Run

    Fort Collins, CO

    Outside

    Thu, Nov 26, 2026

    Fort Collins Thanksgiving Day Run

    Fort Collins, CO

    Outside4.0 mi

    Sat, Dec 19, 2026

    Sweaty Sweater 5k

    Fort Collins, CO

    Outside5K1 mile

    Thu, Dec 31, 2026

    Resolution Run - Fort Collins

    Fort Collins, CO

    Outside5K

    Sat, Mar 6, 2027

    Sharin' O' The Green 5k

    Fort Collins, CO

    Outside5K

    Sun, Apr 18, 2027

    Horsetooth Half Marathon - Presented by Fort Collins Connexion

    Fort Collins, CO

    OutsideMarathon

    Sun, May 2, 2027

    The Colorado Marathon

    Fort Collins, CO

    OutsideMarathon10K5K

    Fri, Jun 11, 2027

    M1LE Nation Challenge

    Fort Collins, CO

    Outside1 mile800 m

    Fri, Aug 6, 2027

    Wild West Relay

    Fort Collins, CO

    Outside200.0 mi

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