Geist Half Marathon
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Event overview
The Geist Half Marathon, 10K & 5K is scheduled for September 12 - 19, 2026, with in-person races on September 12, 2026. The event is in its 18th year and is operated by the City of Fishers in partnership with Vision Events Management. The series includes in-person and virtual race options and a Youth 5K. All participants receive a race shirt, medal, timing bib, and access to the post-race party. VIP registration is available.
Location and course
The event is based in Fishers, IN (11300 Olio Road, 46037). The course runs around Geist Reservoir and includes water views, tree-covered trails, waterfront bridges, and several hills.
Registration and races
Base entry fees listed on the event site include:
- Half Marathon - 13.1 miles; base fee $67.67
- 10K - 6.2 miles; base fee $39.99
- 5K - 3.1 miles; base fee $33.99
- Youth 5K - base fee $20.00
Virtual race options are offered for the half marathon, 10K, and 5K with fees matching the in-person base amounts. Prices increase at later registration dates, with a noted price increase after January 1, 2026. Visit the organization's website for the most recent information.
