A record-setting mowing attempt at Louisville’s Waterfront Park connected outdoor equipment performance with the public-health and environmental role of managed green space.
The TurfMutt Foundation’s TurfMutt Great Lawn at Louisville’s Waterfront Park hosted a GUINNESS WORLD RECORDS™ achievement on May 16, 2026, when power technology company Rehlko recorded the fastest mowing of an area the size of an American football field. Driven by Hali Rieman, known as the “Lawn Queen”, the mower used Rehlko’s Command PRO® 999 cc, 41-horsepower gasoline engine. The event gave the TurfMutt Foundation a highly visible setting in which to frame managed landscapes as functional community infrastructure, rather than simply ornamental space.
The attempt formed part of Rehlko’s global “Cutting History” initiative, but its setting placed equal emphasis on the role of public parks. Waterfront Park’s Great Lawn was renamed the TurfMutt Foundation Great Lawn in 2024 as part of a $1 million sponsorship, linking the record attempt to an existing relationship between the foundation and the Louisville landmark. Waterfront Park describes itself as a non-profit public park and says it welcomes more than 2.5 million visitors each year.
The record required the grass to be maintained at a minimum height of six inches to mirror unpredictable, high-load environments. According to the release, that condition turned the lawn into a testing ground for the mower while demonstrating that managed turf could withstand extreme conditions and retain its environmental integrity. The foundation also highlighted turfgrass’s claimed ability to produce oxygen, sequester carbon, filter air, cool communities, control erosion and reduce runoff.
Kris Kiser, president and chief executive of the TurfMutt Foundation, the Outdoor Power Equipment Institute and Equip Exposition, described the event as a tribute to the health, wellness and environmental benefits of managed landscapes. Waterfront Park president and executive director Deborah Bilitski similarly said the Great Lawn’s recognition underscored the importance of green spaces to health, wellness, community connection and local pride. Those comments position the event at the intersection of equipment demonstration, place-based sponsorship and environmental education.
The foundation says TurfMutt was created by the Outdoor Power Equipment Institute’s TurfMutt Foundation and has reached more than 70 million children, educators and families since 2009. Its stated education work encourages students and teachers to protect green spaces, while its public messaging extends that idea from parks to backyards. By hosting a world-record attempt on a sponsored civic lawn, the TurfMutt Foundation connected that educational platform with a live demonstration whose meaning depended as much on the park around it as on the machine crossing the grass.
