Trail Running calendar near Mason 2026-2027

Powder Keg at Carter Park in Kings Mills, Ohio on August 22, 2026 features a roughly 3.5 mile trail loop along the Little Miami River with an old road, an old dam, and a stair climb. Online registration only, fee $23.50.

Trail races at Mt. Airy Forest in Cincinnati include 5K, 10K, a 13.1 Miles half marathon and 30K. Finishers get medals, half marathon and 30K include shirts, and the event awards series points across the ATR season.

A 15K trail race through limestone cliffs and wooded trails at Oakes Quarry Park in Fairborn, Ohio on August 29, 2026. The entry fee is $45 and registrations by August 15 include a short sleeve shirt.

Third-year trail ultrarun at East Fork State Park on September 12, 2026, using a roughly 33 mile loop for 50K, 100K and 100 mile, plus a 15 mile out and back. The course includes singletrack, creek crossings and lake views.

Experience the fourth annual aMAZing 5k trail run at the Garber Nature Center. This event supports the Preble County Park District and offers awards for top finishers across multiple age categories.

Sprint For Survivors is the 8th annual run in Marysville on September 12, 2026. Distances include a 1 Mile, a 5k and a 10k and proceeds support She Dreams Again and its transitional home for trauma survivors.

A four-loop trail 50K at Germantown MetroPark with an individual race and two-person relay, about 3,000 gain, manned aid stations, a cupless policy, and a flood-course alternative; registration runs from 2026-03-01 to 2026-09-10.

A farm based obstacle event with a 5K course and a 1 mile kids option, featuring over 20 obstacles, pumpkins, food trucks, and educational displays at South Plymouth Pumpkins in Washington Court House.

The 2026 Air Force Marathon celebrates its 30th anniversary at Wright Patterson Air Force Base in Dayton, Ohio. Events range from a Boston qualifying marathon to a 1K kids run and include virtual options plus a weekend expo and festival.

An illuminated night run and walk at Glenwood Gardens with marked trails, a two-loop 3.26 mile run and a one-loop 2 mile walk; the run counts toward Dirt Days Trail Series points and online registration is required.

A 7 mile trail race at Stillwater Prairie Reserve near Covington, Ohio, run as two 3.6 mile loops with dirt, gravel and meadow sections and river crossings. ORRRC members pay no fee while non-members ages 15 and up pay ten dollars.

A 30K trail race in Cincinnati run as three laps of a 10K loop, featuring meadows, wooded trails and notable elevation gain. Finishers receive a medal and 30K entrants receive a finisher t-shirt; walkers are welcome.

Trail races at Caesar Creek State Park on September 26, 2026, including a half marathon, 10K, 5K, 20K relay, and a 6-hours event. Entries include a custom bib, fueling supplies, a medal, and timed results.

Experience eight weekends of trail running across Ohio and Kentucky this fall. With distances ranging from 5K to 50K and unique 6 hour challenges, there is an event for every trail enthusiast.

STADIUMTREK at Nippert Stadium on October 2, 2026 features an individual challenge to complete 14,000 steps within a three hour window for 14ER status, plus a relay for teams of 2 to 4. Registration opens June 17, 2026 and the fee is $49.99..

Loop trail races in Shawnee State Forest on October 3, 2026, with 54 mile, 31 mile and 13.1 mile options, significant elevation gain, cupless aid stations and a remote wilderness section.

Test your stamina in Dayton at this 12 hour endurance event. Run or ruck across a flat 2.7 mile loop consisting of grass and trail double track to earn your finisher medal.

A multi-distance endurance event in Middletown Ohio on a flat one-mile loop through field, woods, and pavement, supporting local charities with aid station service, cooked meals, camping, and awards.

Run with Heart in Urbana offers a 5K, a 1 mile fun run walk, or virtual participation along the Simon Kenton Bike Path. The 5K awards the top three male and female finishers in several age categories.

A two day trail event at John Bryan State Park on October 10 and 11, 2026 featuring half marathons, 10K and 5K races, a 20K relay, and a six hour timed event. A Pack Pass provides entry to all 2026 events.