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    Running Races in Cornwall, CT

    13 upcoming races in and around Cornwall. Run This events are listed first — jump to a specific distance below.

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    Nearby citiesRoxburyNew HavenStratfordHamdenMysticWest HartfordWestportFairfieldHartfordLitchfieldMeridenNorwalk

    13 races

    Thu, Oct 1, 2026

    IronHike Olympus Mons Ultra | Run, Power Hike, Walk. | Mohawk Mountain, Connecticut | Fall | October | Solo - 72,590 feet of elevation gain, possibly more than any endurance event of its kind. - 100 Mile + Elevation Endurance Ultra Trail Marathon - 152 + Miles - 84 Hour - We are redefining race day. Tags: Iron Hike, 100 Miler, Oct, CT, Cornwall, New England, Loop, Ski Slope, Skratch Labs, Hardest Ultra, Hard Ultra

    Cornwall, CT

    Outside152.0 mi

    Thu, Oct 1, 2026

    IronHike Olympus Mons Ultra | Run, Power Hike, Walk. | Mohawk Mountain, Connecticut | Fall | October | Trail Buddy Flex Relay (2 Mountain Athletes) - 72,590 feet of elevation gain, possibly more than any endurance event of its kind. - 100 Mile + Elevation Endurance Ultra Trail Marathon - 152 + Miles - 84 Hour - We are redefining race day. Tags: Iron Hike, 100 Miler, Oct, CT, Cornwall, New England, Loop, Ski Slope, Skratch Labs, Hardest Ultra, Hard Ultra

    Cornwall, CT

    Outside152.0 mi

    Thu, Oct 1, 2026

    Everest - 60 Mile + (60 Miler) - just over 29029 feet of elevation gain up and down - Everesting Elevation Endurance Ultra Trail Marathon - 61 + Miles | 72 Hour - IronHike (Iron Hike) Fall (October / Oct) - Solo - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.

    Cornwall, CT

    Outside61.0 mi

    Thu, Oct 1, 2026

    Everest - 60 Mile + (60 Miler) - just over 29029 feet of elevation gain up and down - Everesting Elevation Endurance Ultra Trail Marathon - 61 + Miles | 72 Hour - IronHike (Iron Hike) Fall (October / Oct) - Relay - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.

    Cornwall, CT

    Outside61.0 mi

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    Thu, Oct 1, 2026

    Answer the Bell Full - 100 Mile + (100 Miler) - Complete a 1.2 mile, 600 foot loop every hour, on the hour, for up to 84 hours, until you can no longer answer the bell. - Elevation Endurance Ultra Backyard Trail Marathon - 100 + Miles | 84 Hour - IronHike (Iron Hike) Fall (October / Oct) - Solo - Mohawk Mountain, Connecticut (CT) - Run, hike, or walk with us as we redefine race day.

    Cornwall, CT

    Outside61.0 mi

    Fri, Oct 2, 2026

    Denali - 40 Mile + (40 Miler) - if you can only spare your whole weekend - Elevation Endurance Ultra Trail Marathon - 43 + Miles | 48 Hour - IronHike (Iron Hike) Fall (October / Oct) - Solo - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.

    Cornwall, CT

    Outside43.0 mi

    Fri, Oct 2, 2026

    Denali - 40 Mile + (40 Miler) - if you can only spare your whole weekend - Elevation Endurance Ultra Trail Marathon - 43 + Miles | 48 Hour - IronHike (Iron Hike) Fall (October / Oct) - Relay - Mohawk Mountain, Connecticut (CT) - Run, Hike or Walk with us as we redefine race day.

    Cornwall, CT

    Outside43.0 mi

    Sat, Oct 3, 2026

    Iron Hike - Fall Double Kuwohi Trail Marathon Plus - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk

    Cornwall, CT

    Outside28.0 mi

    Sat, Oct 3, 2026

    Iron Hike - Fall Double Kuwohi Trail Marathon Plus Relay - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk

    Cornwall, CT

    Outside28.0 mi

    Sat, Oct 3, 2026

    IronHike Kuwohi | Run, Power Hike, Walk. Solo | Start Here | Mohawk Mountain, Connecticut | 15 Miles | 7,140' Elevation | 12-Hour | Fall October - 7,140 feet of elevation gain across 12 laps on Mohawk Mountain Trail, the entry point for first time Mountain Athletes. - Elevation Endurance Half Marathon - We are redefining race day. Tags: Iron Hike, Trail Half Marathon Plus, Half Marathon, 15 Miler, Oct, CT, Cornwall, New England, Loop, Ski Slope, Beginner Endurance

    Cornwall, CT

    Outside15.0 mi

    Sat, Oct 3, 2026

    Iron Hike - Fall Kuwohi Trail Half Marathon Plus Relay - 15 Miles | 7,140' Elevation | 12-Hour | Run, Hike or Walk

    Cornwall, CT

    Outside15.0 mi

    Sat, Oct 3, 2026

    Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Basic (Backyard Ultra Format) - 28+ Miles | 14,400'+ Elevation | 24-Hour | Run, Hike or Walk

    Cornwall, CT

    Outside61.0 mi

    Sat, Oct 17, 2026

    The Little Guild 13th Annual Run & Wag 5K

    Cornwall, CT

    Outside5K

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