After 33 seasons as a head coach in men’s college basketball, Roy Williams is hanging up his whistle and calling it quits. The head coach at the University of North Carolina-Chapel Hill announced his retirement Thursday morning.

The 2007 Naismith Hall of Fame inductee led the UNC Tar Heels to three national championships, winning titles in 2005, 2009 and 2017. Williams also guided UNC to two other Final Fours, nine ACC regular season titles and three ACC tournament championships.

“It’s been a thrill. It’s been unbelievable. I’ve loved it,” Williams said at a press conference at the Smith Center on Thursday. “No one has ever enjoyed coaching like I have. … I no longer feel that I am the right man for the job.

“I never had any day where I didn’t give my absolute best. Not one single day. I cared deeply for my school. I cared deeply for every player. I’m really proud of what we accomplished.”

Williams, 70, is a native of Marion, N.C., and a 1972 UNC-Chapel Hill graduate. He leaves his post on the Tar Heels’ bench as one of the most accomplished college basketball coaches of all time.

Across his coaching career – which also included 15 seasons at the University of Kansas – he won 903 games. He hit that mark faster than any coach in men’s college basketball history and he is the only coach to win at least 400 games at two schools. Among Division I men’s head coaches, he is third all-time in total victories, trailing only Syracuse’s Jim Boeheim and Duke’s Mike Krzyzewski.

“Roy’s fingerprints will forever be on the sport of college basketball, and specifically, the Atlantic Coast Conference,” ACC Commissioner Jim Phillips said in a statement. “We wish him, (his wife) Wanda and his entire family all the best as he begins this next chapter of an amazing life.”

Williams coached 52 players who would go on to play in the NBA, 32 of which were first-round picks. Williams also coached 17 first-team All-Americans.