Larry Scott is resigning after six years as chairman and chief executive officer of the WTA Tour to become a commissioner in a US College sports conference.
Scott will remain with the women's professional tennis circuit into June, the tour said on Tuesday. He will work with the tour board to select his successor.
"It was not an easy decision. I've been in tennis my whole life," Scott said in a telephone interview on Tuesday night. "I realised after 20 years that I maybe had done the most I could do in this sport."
Scott became the CEO of the WTA in 2003, after having been ATP chief operating officer and president of ATP Properties.
Under his watch, the WTA pushed for and got equal prize money for women at Wimbledon and the French Open.
"Despite all the financial success and commercial success, by far the achievement I'm most proud of is equal prize money," Scott said.
His biggest disappointment as he prepares to leave?
"I regret that I couldn't convince the men's tour that a merger with the women's tour would make sense by making tennis a bigger, stronger enterprise," Scott said.