Trail Running calendar near Decatur 2026-2027

We have found 32 Trailruns within 80 miles of Decatur. See below where and when you can find the races.

A community 5K at Community High School in Unionville, TN on August 8, 2026, with a course through a neighborhood and the school's wooded cross country trail supporting school teams.

Trail 10K and half marathon at Monte Sano State Park with aid stations, a cupless policy, series points and a 400 runner cap.

A two hour loop challenge on the Oneonta High School cross country course where runners complete as many 1.35 mile loops as possible. Registration is free and donations at packet pickup support Oneonta High School Cross Country.

September 2026

Experience a unique multi day ultramarathon where your age determines your clock. Run as many miles as possible on a one mile loop in a community focused event that celebrates veteran athletes and long distance legends.

A looped endurance event in Birmingham's Railroad Park where runners repeat an approximately 0.78 mile circuit with progressively shorter cutoffs until they stop or miss a cutoff. Awards go to the last three men and women and a portion of f..

A 5K at Cathedral Caverns State Park near Woodville, AL on September 20, 2026, featuring a 0.6 mile out and back through a lit cave. Entries are limited to waves of 200 runners and registration carries a $45 fee.

A community fitness festival at Hays Farm Park in Huntsville on September 26, 2026. It features a certified half marathon, a timed 5K, a 1 mile community run, a short bike ride, pop up classes, vendors, and door prizes.

Trail 10K and 5K at Turkey Creek Nature Preserve in Pinson, AL with a capped field, pancake breakfast and optional waterfall tubing finish.

October 2026

Little Dog's Backyard Ultra in Bell Buckle TN on Oct 3 2026 is a Last Runner Standing race run on repeated 4.1666667 mile loops with a limited field and wait list.

Backyard Ultra at Wade Mountain Preserve near Huntsville AL where runners complete repeated 4.167 mile loops on trails by day and an out and back road at night.

A seven-mile trail race on Monte Sano Mountain starting at Oak Park Recreation Center in Huntsville, AL, with pink-flag course markings, water at about miles 2 and 4, packet pick-up at Fleet Feet Huntsville, and a shirt plus finisher gift.

Last Man Standing team race on Oct 17, 2026 in Bell Buckle TN where athletes qualify via silver tickets or national At Large rankings for the World Backyard Ultra Team Championships.

A 20 mile loop on Sewanee's Perimeter Trail with three aid stations, starting and finishing at the Mountain Goat Visitor Center and supporting the Perimeter Trail Fund.

A fall trail marathon near Huntsville AL offering marathon, half marathon and 10K distances with a hooded sweatshirt, finisher medal and post race meal.

A two-day trail running weekend in McMullen Cove with a certified 5K, 25K and 50K, notable mountain terrain, aid stations, and proceeds supporting childhood cancer research.

November 2026

Trail races of 5K and 15K at Cathedral Caverns State Park in Woodville AL featuring a cave segment, aid stations, cupless policy, and capped fields.

Looped trail event near Petersburg TN offering 3, 6 and 12 hour options on 3 miles of former horse trails with about 1,000 feet of elevation gain and loss.

Trail trail races at Ruffner Mountain Nature Preserve in Irondale, AL include a 6 Miler, Half Marathon and Full Marathon on a 6.4 mile loop with two aid stations.

A loop-based trail event at Monte Sano State Park offering 50K, 20 mile, and 10 mile options with one pavilion aid station and medical support.

Trail race at Red Mountain Park near Birmingham offering a 13.5 mile loop and a 27 mile double loop with aid stations and a postrace meal.

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