Geist Half Marathon
Geist Half Marathon rolls along Geist Reservoir in Fishers, a suburban Indianapolis race with waterfront bridges, tree-lined roads, and steady hills.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 24, 2026.
Quick facts
- Course built around Geist Reservoir with bridge crossings and water views.
- Rolling suburban terrain rather than a flat PR layout.
- City of Fishers operates the race with a 10K, 5K, and 1-mile alongside.
- One of the Indianapolis area's established fall half marathons.
2026 Geist Half Marathon registration
Registration for the 2026 Geist Half Marathon runs through the official registration page at runsignup.com.
About the Geist Half Marathon
Operated by the City of Fishers with Vision Events, the Geist Half has been a fixture on the Indianapolis-area fall calendar for well over a decade. It is the flagship of a race morning that also includes a 10K, 5K, and 1-mile, and it trades downtown Indy for the water views of Geist Reservoir.
Course
The route works the neighborhoods and parkways around Geist Reservoir, crossing waterfront bridges and running long tree-lined stretches with the water in view. The terrain rolls steadily rather than staying flat, so even pacing beats attacking the early miles.
Race-day weather
Mid-September in central Indiana usually brings starts in the upper 50s and finishes near 70, with humidity still possible. The tree cover helps, but the later miles can feel warm on slower days.
Past Geist Half Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, September 12, 2026 | Upcoming | — |
Geist Half Marathon FAQ
When is the Geist Half Marathon?
The 2026 Geist Half Marathon is on Saturday, September 12, 2026.
How do I register for the Geist Half Marathon?
Register for the Geist Half Marathon through the official registration link: marathonscout.com/go/geist-half-marathon/register. It opens the race registration page at runsignup.com.
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