Geist Half Marathon, 10K & 5K

Get ready for an unforgettable day of fitness and fun at the Geist Half Marathon, 10K & 5K on Saturday, September 13, 2025, in the picturesque setting of Fishers, Hamilton. Celebrating its 16th year, this exciting event showcases the breathtaking beauty of Geist Reservoir, featuring stunning water views, scenic tree-covered trails, and charming waterfront bridges.

Participants can choose from three fantastic race distances: the Half Marathon (13.1 miles), the 10K (6.2 miles), and the 5K (3.1 miles). Each runner will receive a race shirt, a medal to commemorate their achievement, and access to a lively post-race party! New this year, the popular 10K course is back by demand, making it the perfect opportunity for participants of all skill levels to join in the fun. There’s even VIP registration available for those looking to elevate their race experience. Don’t miss out on this vibrant celebration of health and community—mark your calendars for September 13th!