Tecumseh Trail Marathon

Tecumseh Trail Marathon is held in Nashville, Indiana, on October 17, 2026, part of the DINO series. Four trail distances are on the schedule: a 50K (31 miles), a marathon (26.2 miles), a half marathon (13.1 miles) and an 8-mile fun run (12.9 km), all run on the Tecumseh Trail in the wooded hills of southern Indiana.

Brown County is the closest thing the Midwest has to sustained hill running, and the marathon here will feel considerably harder than a flat road 26.2, so set your expectations by effort rather than by your road personal best. The 8-mile and half marathon are good introductions to the terrain. For the marathon or the 50K, plan a 16-week build with long runs on rolling trails and time spent practicing downhill running, which is what usually wrecks the last hour.