Mary Heidkamp, Parent of a Division 1 college athlete whom John has trained since high school

“John Hayley is determined to see success in his clients, and takes pride in their success. The off-season core training work my daughter does with John prepares her for physical demands during the season, and she seldom experiences injury.
John is both knowledgeable and gifted as a performance enhancement coach. His personable style encourages his clients to tap into their own success. I think the world of John and the world of what he’s doing."

John Lipa, Coach of the Lightning Running Club, Glen Ellen

"John Hayley led a group of about 25 young runners and soccer players in a 45-minute injury prevention clinic. He had created a set of up-to-date stretching and strengthening exercises specifically for this group. He was professional, well-prepared and held the kids’ undivided attention. I was amazed—I thought that was magic."

Lonnie Preis, Head Football Coach, Concordia University Chicago

"John Hayley is passionate and professional in his efforts to help athletes improve. He has done a terrific job of running our off-season strength and conditioning program—always ready ahead of time, getting the day ready for our players. John is also very effective at connecting with people, and is able to adjust to a wide spectrum of athletes, their skills and needs.”

Kathy Gephardt, Head Volleyball Coach, Concordia University Chicago

"John Hayley is very creative with his workouts. He pushed my athletes in ways they’d never been pushed before, and they began doing things they didn’t know their bodies could do.  John helped them develop their agility, quickness, coordination and vertical jumps, and all of them improved. They were hard workouts, but in the long run, they really benefited our program.”