Summerhays earned his place in the field by virture of his 2-and-1 victory over Bo Jin in the 36-hole final of the 2019 U.S. Junior Amateur Championship at Inverness Club in Toledo, Ohio. Summerhays comes from a family of golfers. His great uncle, Bruce, won three times on the PGA Tour Champions. His uncle, Daniel, won the Korn Ferry Tour's Nationwide Children's Hospital Invitational as an amateur. He just recently retired from professional golf to pursue a high school coaching. His aunt, Carrie, is the head women's golf coach at Brigham Young University. His father, Boyd, was a standout junior/amateur golfer, earning American Junior Golf Association All-America honors four times. He was the 1995 Golfweek/Titleist Junior Player of the Year before playing for Oklahoma State. A herniated disc ended his PGA Tour career after 29 starts. He's now a noted instructor who not only works with Preston and his younger sister, Grace, but also PGA Tour winner Tony Finau. Preston's great-grandfather, Pres, was the head coach at the University of Utah and his grandfather, Lynn, was a past president of the Utah Junior Golf Association. Preston followed up his U.S. Junior Amateur victory by becoming the youngest champion of the Sunnehanna Amateur (18 years, 2 days) the same week he would have defended his Junior title. The 2020 U.S. Junior Amateur was canceled due to COVID-19. A high school senior in Scottsdale, Ariz., Preston has committed to attend Arizona State University in the fall of 2021. Last December, Preston represented the USA in the Junior Presidents Cup in Australia.