Rehlko Finds Its Driver: Guinness World Record Attempt

Rehlko will attempt to set a GUINNESS WORLD RECORDS title on May 16 at 3 p.m. ET in Louisville, Kentucky, showcasing the real-world performance, durability, and reliability that underpin its power technologies across demanding applications.

The record attempt, fastest time to mow the area of an American football field in a ride-on mower, will take place at the TurfMutt Great Lawn at Waterfront Park under official GUINNESS WORLD RECORDS adjudication and live public observation. The challenge will be executed under rigorous conditions, including grass maintained at a minimum height of six inches, to mirror the unpredictable, high-load environments in which Rehlko products are designed to operate.

While the setting is highly visible, the intent is technical, to publicly validate Rehlko’s engineering under pressure.

“At Rehlko, energy resilience means delivering peak power and consistent performance when conditions are far from ideal,” said Eric Fontaine, President, Engines at Rehlko. “This attempt is a live demonstration of that philosophy. When systems are pushed hard, without controlled variables or second chances, engineering integrity is what determines success. This platform was engineered for sustained blade-tip loads and true commercial duty cycles — not controlled lab environments.”

The Rehlko Command PRO 999 ccRehlkoThe attempt will be powered by Rehlko’s flagship Command PRO 999 cc (41 hp) engine, the most powerful gasoline engine in the company’s portfolio. Designed for professional-duty applications, the platform delivers sustained torque, thermal stability, and endurance under continuous heavy load, characteristics shared across Rehlko’s broader engine and power solutions used in commercial, industrial, and critical infrastructure environments. The Command PRO 999 cc (41 hp) engine represents decades of combustion engineering refinement focused on torque density, vibration management, and field-service efficiency.

The official driver, Hali Rieman, known as “Lawn Queen”, was selected through a nationwide program and brings professional operating discipline and precision to the challenge. Her role underscores the importance of operator and equipment integration, a core principle in Rehlko’s product development approach.

Mulligan, at the Great Lawn at Waterfront Park.TrufMutt FoundationThe May 16 event represents the culmination of Rehlko’s global “Cutting History” initiative, a campaign designed to illustrate how performance claims hold up only when tested in the field.

“We’re excited to bring a GUINNESS WORLD RECORDS attempt to Waterfront Park and the city of Louisville,” said Deborah Bilitski, president and executive director of Waterfront Park. “The TurfMutt Great Lawn is a signature gathering space, and this is a unique way to highlight what the space can support and the community that continues to show up for it. We value partnerships with organizations like Rehlko that think creatively and share a commitment to stewardship and community, and we look forward to seeing this come to life.”

The event will be open to the public, with official GUINNESS WORLD RECORDS adjudication on site to verify the outcome.

The record attempt is not about speed alone. It is about demonstrating the technical confidence, operational discipline, and engineering consistency that define energy resilience across its portfolio. Official record requirements call for grass maintained at a minimum height of six inches to mirror unpredictable, high-load environments.