
About
At Gradoville and Hertzing Management Group (GHMG), we are dedicated to supporting your project's needs with our expertise. Our team consists of three seasoned professionals in golf course management and turfgrass, bringing extensive experience in construction, project management, and agronomy. We pride ourselves on our collaborative approach and proactive leadership, ensuring your project is completed on time and within budget.

Pat Gradoville
Pat Gradoville, Certified Golf Course Superintendent, earned his B.S. Degree from Iowa State University in Turfgrass Management. Pat has worked on 2 continents in golf course construction, serving as Project Manager and Grow-in Superintendent.
Prior to starting GHMG, he was Director of Course & Grounds at Palos Verdes Golf Club for 23 years. Over his career, Pat has managed $100M+ of golf course construction. He is an experienced project manager, anticipating and mitigating risks commonly seen in the industry.
Right now, Pat is focused on a diverse set of projects ranging from acting as the Owner's Representative on a newly aquired course to overseeing a multimillion dollar renovation to a transformative rebuild of a public 9 hole course. ​With a commitment to excellence and a passion for the game of golf, Pat continues to innovate and lead in the field of golf course management. His extensive experience make him a trusted leader in the industry, dedicated to creating and maintaining world-class golfing environments.​​​​​

Robert Hertzing
Robert Hertzing holds a B.S. in Turfgrass Management from Cal Poly, Pomona, and brings a wealth of experience from both the for-profit sector and the equity club world of the golf industry. As the Superintendent at Valencia Country Club and the current General Manager at Lakeside Golf Club, Robert has demonstrated exceptional leadership and expertise.
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Robert has been instrumental in preparing courses for multiple PGA Champions Tour events and has successfully overseen numerous golf course renovation projects, ranging from minor upgrades to major overhauls. His deep understanding of turfgrass management and his strategic approach to renovation and construction have made him a trusted advisor in the golf community.
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Passionate about helping golf clubs achieve excellence, Robert specializes in guiding clubs through the complexities of renovation planning and construction. His commitment to quality and innovation ensures that every project enhances both the playability and aesthetic appeal of the course.​​
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Josh Lewis
Josh Lewis holds a B.S. degree in Horticulture/Turfgrass Management from Oregon State University. With extensive experience in the golf industry, Josh has played pivotal roles in numerous PGA and USGA events. He has worked at seven prestigious top-100 courses, including Bandon Dunes, Eugene Country Club, Pasatiempo Golf Club, and Chambers Bay, where he served as the Superintendent for the 2015 US Open Championship.
This diverse background has equipped Josh with a deep understanding of various agronomic conditions. With a keen eye for detail, Josh has demonstrated exceptional skill in planning and executing projects of all sizes.

Aaron Engelhard
Aaron Engelhard brings over 20 years of professional expertise in Turfgrass and Business Management, honed across prestigious equity golf clubs and multi-course properties. With a foundational career in the renowned golf landscape of Coachella Valley, Aaron has demonstrated outstanding leadership, meticulous attention to detail, PGA tournament preparation, and comprehensive agronomic knowledge.
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Currently, Aaron serves as the Director of Agronomy at Braeburn Country Club in Houston, Texas, where he was recruited to oversee Tripp Davis's full-scale restoration of all course playing surfaces, irrigation systems, drainage infrastructure, and more. In 2021, this project earned "Private Club Renovation of the Year" from Golf Inc.
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Throughout his career as a Golf Course Superintendent, Aaron has seamlessly integrated his passion for golf course construction and agronomic excellence. His extensive experience includes the renovation of 124 greens, hundreds of bunker remodels, new irrigation and pump station installations, and numerous fairway and tee turfgrass conversions.