Ohio Northern Indoor Marathon
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2026 Ohio Northern Indoor Marathon and Half Marathon
The event takes place on January 25, 2026, at the ONU Sports Center in Ada, Ohio. It features two race distances run on an indoor, 200-meter track in the field house. The marathon is USATF certified (OH10061PR). Every 30 minutes runners will change directions and use outside lanes until all runners have switched.
- Marathon - 211 laps on a 200 m indoor track
- Half marathon - 105.5 laps on a 200 m indoor track
Logistics and race rules
Registration is first-come-first-served with a deadline of December 31, 2025 or until the field is filled. The field size is limited to a maximum of 40 runners. The race fee is $100 and includes a t-shirt and a finisher’s medal. Packet pickup is the morning of the race. Timing will use a FinishLynx system with lap splits provided; timing will end after six hours due to facility restrictions. There is no qualifying standard, and indoor marathon times cannot be used to qualify for the Boston Marathon.
Aid stations: two stations on the track, one at each end; water and sports drinks will be available. Runners may place personal bottles, gels, and food on tables. Headsets are not allowed; music will be played. Spectators have seating beside the track. Strollers are not allowed on the track, and pets are not allowed in the field house. The Inn at Ohio Northern University is located on campus within walking distance; other nearby hotels are in Lima and Findlay. Visit the organization's website for the most recent information.