Trail Running Calendar United States 2026-2027

A community 5K trail run/walk at Winfield City Lake with adult and 10 and under divisions, a 3.1 mile shoreline course, water stations, hidden cash prizes, and proceeds shared with a local charity.

Run of The Fellowship is an in-person trail event at Clifford Park in Biddeford, Maine on May 30, 2026. It offers a 5K route and a longer full quest option, welcomes costumes, and is pending final permits and insurance.

An evening trail event at Dos Rios State Park near Modesto offering 3 mile and 5 mile runs on fire roads along the Tuolumne River. Free registration and an informal post run gathering with donations supporting park rangers.

An untimed off road 5K through sunflower and corn fields at Crawford Sunflower Farm on May 30, 2026. The 5K ticket includes festival admission and awards are given for top three men, top three women and top three under 18 runners.

A donut-themed family run and walk on May 30, 2026 at Kankakee Community College supporting Catholic Charities. Options include a 5K, a 2K, and a virtual participation option; youth entries are free.

Trail races at Toro Park near Salinas on May 31, 2026 offer 10K, half marathon and marathon options on rocky trails and dirt roads. Average temp 16°C and average altitude 520 m; timing uses gun time.

Lucifer's Crossing on May 31, 2026 in Robert Treman State Park features trail 5K, 10K and a 13.2 mile half that pass through Lucifer Falls gorge and Finger Lakes singletrack.

A 3-mile obstacle race in Downtown El Paso on May 31, 2026 featuring 15+ obstacles, on-course safety measures, hydration and recovery zones, and entertainment along the route.

Experience a scenic point to point run from Plover to Amherst along the Tomorrow River Trail. This half marathon concludes at the Central Waters Brewing Co for a memorable finish in Wisconsin.

An 80s themed race day at Eisenhower Park offering in person and virtual distances from a kids dash to a chip timed half marathon, with a costume contest, DJ music, medals and age group awards.

Trail and virtual 25k and marathon events at Carvins Cove on May 31, 2026, featuring steep climbs and long descents, spring blooms, and RNUTS qualification.

A grassroots trail half marathon in Sky Valley, Georgia on May 31, 2026, offering clock timing only with no shirts, swag, or awards. Day of registration is cash only and volunteers receive a complimentary entry to the next June race.

A community 5K along the Lansing River Trail starting at Lansing Shuffle on May 31, 2026, organized by the Ingham County Bar Association Young Lawyers Section. Entry includes a t-shirt if registered by May 13 and a $10 Lansing Shuffle gift..

SwimRun Knox on May 31, 2026 features a 12.25 mile swimrun at Mead's Quarry and Ijams Nature Center plus a 3.18 mile trail 5k and a 13.1 mile trail half marathon, with team and individual entry options.

On May 31, 2026 at Ice House Park in Woburn, MA the second annual Live Free Fun Run and Festival pairs a scenic *2.5 mile* off-road run or walk with a community festival. The festival features food trucks, a DJ, activities and tables from l..

A scenic loop at Sky Meadows State Park on May 31, 2026, offering 5K and 10K courses with views of fields, streams and Turners Pond. Walkers are welcome and virtual entries are available with medal and shirt options.

Trail races on May 31, 2026 in Arnold, CA offer distances from 5k to a new 50k ultra across the Arnold Rim Trail and White Pines Lake Park, with proceeds supporting the Arnold Rim Trail Association.

Experience the only ultramarathon in North Park at the South Ridge Trail Challenge. Choose from multiple distances including a 5K and a 50K relay through the scenic trails of Western Pennsylvania.

A scenic *5 km* cross country race at the Leadville National Fish Hatchery on May 31, 2026, with dirt road, path and trail sections. Awards are given by age group and youth registration is free.

A women's 5K obstacle mud run in Nashville on May 31, 2026 at Music City Raceway. The course features more than 18 obstacles and is open to participants aged 7 and up who may run, jog, or walk.