Races Half marathon · Fishers, USA
Geist Half Marathon
Geist Half Marathon is a rolling half marathon in Fishers, USA, held each September. The loop circles Geist Reservoir, crossing bridges and using tree-lined paths. The organiser describes rolling hills and a challenging course. Early mornings in Fishers in September are usually mild, around 13 to 24°C, with some humidity. The rises around Fishers are small but relentless — train on similar terrain and race by effort, not pace.
Page rebuilt 2026-11-14 · race facts not independently verified — confirm dates and entries on the official race site
When
September
every year
Course
rolling
Half marathon
Conditions
Early mornings in Fishers in September are usually mild, around 13 to 24°C, with some humidity.
Racing this course well
The loop circles Geist Reservoir, crossing bridges and using tree-lined paths. The organiser describes rolling hills and a challenging course.
The rises around Fishers are small but relentless — train on similar terrain and race by effort, not pace.
Getting a place
Official Geist Half Marathon site →Checked November 2026
Race day
- Start time
- 07:30
- Also on the day
- 10k, 5k, 1 mile
The course in numbers
The route runs around Geist Reservoir with bridge crossings and rolling hills on the paths.
- Layout
- Loop
Worth knowing
- The race is operated by the City of Fishers with Vision Events Management.
- Runners arriving after 7:35 am are not allowed to start.
Pick your goal for Fishers
Pace charts, weekly structure and timelines for the most common half marathon goals:
We don’t hold a confirmed date for this edition, so any countdown comes from the date you enter here.
Build your training around Geist Half Marathon.
RunV works backwards from race day to today. Your plan adapts when life interrupts, and you approve every change. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.
Everything above stays free and complete — this is an optional next step, not a paywall.
Asked often
- When is the Geist Half Marathon?
- It is held each September in Fishers, USA. Check the official Geist Half Marathon site for the exact date and entry windows.
- Is the Geist Half Marathon course flat?
- The loop circles Geist Reservoir, crossing bridges and using tree-lined paths. The organiser describes rolling hills and a challenging course.
- How should I train for the Geist Half Marathon?
- Build for the course you'll actually race at the Geist Half Marathon: rolling terrain, September conditions. RunV Premium builds a training plan around your goal time and race date, and lets you adapt it when life interrupts the Fishers build.
Not sure what to target? Predict your half marathon time from a recent race →
More half marathon races
Supplements research for this distance
Build for Fishers — around your actual life
RunV engineers your block backwards from race day in September — and adapts it when training doesn't go to script. You approve every change.

