Outdoor X12 Endurance Run

The Dawg Gone Long Run 50k/50 Miler is a trail ultramarathon held at Caesar Creek State Park in Waynesville, Ohio. Scheduled for late June, it offers two distances: a 50-mile race consisting of three counterclockwise loops and a 50k race with two loops on scenic single-track trails around Caesar Cre..

The Steel City 12 Hour Run & Ruck is a unique endurance event held at Smith Park in Middletown, Ohio. Participants run or ruck for 12 hours on a flat, paved 1.52-mile loop course that parallels Middletown Regional Airport. The race offers various distance goals including half marathon (ruck only), m..

The Powder Keg Trail Run is a popular event scheduled for August 23, 2025, at Carter Park in Kings Mills, Ohio. This trail run is part of the Dirt Days Trail Series and features a scenic 3.5-mile course that includes various terrains, such as trails near the Little Miami River and an old dam. Partic..

The Germantown 50k, scheduled for September 6, 2025, is a premier ultra trail race hosted in Germantown, Ohio. Participants can choose between the traditional 50k race and a new two-person relay option, where team members complete two loops each. The scenic course features a mix of cedar forests, pr..

The Air Force Marathon is an annual endurance event held at Wright-Patterson Air Force Base in Dayton, Ohio, typically on the third Saturday of September. It offers a variety of race distances including a full marathon, half marathon, 10K, 5K, a 3-person marathon relay, and a 1K kids’ run called the..

A Day in the Park is a timed ultrarunning event held at Miller Ecological Park in Lebanon, Ohio. Featuring a USTAF-certified, flat, and scenic 1-mile crushed gravel loop, the race offers 24-hour and new 6-hour options, catering to both seasoned ultrarunners and first-time ultra or marathon participa..