Dexter Ann Arbor Half Marathon 2024 Schedule. Supporting local mental health charities, participants run. Since 1974, this race, the area’s biggest running event, draws thousands of runners from throughout southeast michigan.

Runners will start the half marathon in the picturesque town of dexter, michigan and head east for a scenic, rolling 13.1 mile course along beautiful huron river dr. The half marathon will start at 8:30 a.m., regardless of whether you are there.