MILWAUKEE, Wis – April 20, 2026: Rehlko today announced it 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 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.

The 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. For investors, the demonstration reinforces Rehlko’s long-term focus on engineering platforms that scale across applications where uptime, reliability, and lifecycle performance are non-negotiable.

“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.

About Rehlko

A global leader in energy resilience, Rehlko delivers innovative energy solutions that sustain and improve life across home energy, industrial energy systems, and powertrain technologies with control, resilience, and innovation. Leveraging the strength of its portfolio of businesses — Power Systems, Clarke Energy, Home Energy, and Engines—and its more than a century of industry leadership, Rehlko provides power where and when the grid cannot. Rehlko goes beyond function and individual recovery to create better lives, communities, and a more durable and energy-resilient future. Learn more at rehlko.com.

About Rehlko Engines Rehlko Engines has been engineering and manufacturing high-performance gasoline and diesel engines for more than 100 years, powering professional turf care, construction, industrial, and specialty equipment worldwide. Known for torque density, durability under sustained load, and serviceability in demanding field conditions, Rehlko engines are trusted by OEMs and fleet operators where uptime directly impacts productivity and profitability.