Career
Kostis is a golf instructor. Among his many students are Paul Casey, Chez Reavie, Bernhard Langer, Steve Elkington, Dan Marino, Maury Povich, and Mike Schmidt. He has the Peter Kostis Learning Academy at Grayhawk Golf Club, Scottsdale Arizona Kostis also was the instructor who coached Kevin Costner in the movie "Tin Cup".
In 1992, Kostis joined Columbia Broadcasting System Sports as an on-course reporter and golf analyst.
In addition to his Columbia Broadcasting System duties, he was from 1989-2004, the lead golf analyst for the United States of America Network.
