Geist Half Marathon

The Geist Half Marathon, 10K & 5K is an annual running event held in Fishers, Indiana, showcasing the scenic beauty of Geist Reservoir. Scheduled for September 13, 2025, the race series includes a half marathon (13.1 miles), 10K (6.2 miles), and 5K (3.1 miles), along with virtual race options. Known for its challenging course featuring hills and picturesque bridges, the event offers stunning water views and tree-lined trails.

Participants receive a race shirt, medal, timing bib, and access to a post-race party. The event is organized by the City of Fishers in partnership with Vision Events Management and also offers VIP registration and a Hero Hut Breakfast. Visit the organization's website for the most recent information.