2026 London OH Marathon
| 📍 | London, United States |
| 🏃 | Road |
| 📏 | 5 km, 13.1 miles, 26.2 miles |
| 📅 | Saturday, 11 April 2026 |
The 2026 London OH Marathon will take place on April 11, 2026, in London, Ohio, USA, starting and finishing at Merri-Mac Park, located at 43140. The event is set against a backdrop of flat, tree-lined rail trails, offering runners a scenic and competitive route that is ideal for personal records or Boston Qualifier attempts. The expected weather on race day is likely to be mild with temperatures ranging between 50°F and 65°F, with mostly sunny conditions, making it a comfortable day for runners. Hosted by the Merrimac Miracle Organization, the event serves as a fundraiser for Merri-Mac Park and includes a Full Marathon, Half Marathon, and 5K, all of which are USATF Certified.