The Race You Love Is Back!
The Geist Half Marathon, 10K & 5K, returns for its 17th year on Saturday, September 13, 2025! Operated by the City of Fishers in partnership with Vision Events Management, the race showcases the beauty of Geist Reservoir with stunning water views, tree covered trails, and waterfront bridges. The Geist Half Marathon race series offers a 5K (3.1 miles), 10K (6.2 miles), and a Half Marathon (21.0975km or 13.1 miles). Geist Half Marathon is locally known for its challenging course with hills around every corner, and bridges featuring some of Indiana’s most scenic views.
All participants receive a race shirt, medal, timing bib, and access to the post-race party. VIP registration is also available.
Want to stay up-to-date on all things Geist Half Marathon related? Be sure to subscribe to our mailing list! We send monthly e-news to our subscribers to share upcoming training events, running tips, and more.
2025 Race T-shirt Revealed!
We’re excited to debut our 2025 race shirt, featuring the iconic scenery and bridges of Geist Reservoir on a cozy, cotton tee! This design was created by Fishers resident and high school senior, Laila Lewis, and received an overwhelming number of votes during our Community Art Contest last month! Learn more about Laila here.
Hear Stories and Running Tips from Past Years’ Ambassadors
Check out our blog posts:
- Geist Half Marathon Ambassador, Evan Taylor, Talks Black Men Run Experience
- How to Train for a 5K, 10K, or Half Marathon
- Meet Your Neighbor: Geist Half Marathon Streaker, Kevin Stinson
- Meet Your Neighbor: GHM Ambassador, Laura Crawford
- Discover the Joys of Trail Running
- Racing for Love
- Find Your Running Community
- Tips for Tackling Cold Weather Runs
- Meet City of Fishers Culture of Health Ambassador and GHM Race Director
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