Florida - Women's Tennis Association CEO Stacey Allaster, once named as one of the most powerful women in sport, will resign next month for personal reasons, the organisation said on Tuesday.
Allaster, 52, was named chief executive in 2009 and played an instrumental role in securing equal prize money for women tennis players at six WTA events and all four grand slams.
"It's been a privilege to lead the organization that Billie Jean King founded and to have worked with the world's best female athletes, dedicated tournament promoters and passionate and professional WTA team members," Allaster, who joined the WTA as its president in 2006, said in a statement.
"For 25 years I have dedicated my professional life to the sport and I'm proud of the work I leave behind."
The WTA said the process to replace Allaster is underway but offered no timetable for when a successor will be named.
During her tenure, Allaster secured a record number of new sponsors, enhanced the health and well-being of athletes through her work in streamlining the tennis calendar and saw a jump in TV viewership and attendance at the sport's biggest events.
The Canadian, who was named as one most powerful women in sports in 2009 by Forbes, said she was leaving her position for personal reasons to spend more time with her family and called the recent death of her brother-in-law and the ATP chief executive Brad Drewett as a "personal wake-up call."
"The recent loss of my brother-in-law and the ATP's CEO, Brad Drewett, has provided a personal wake-up call about life, family and priorities and it is time for me to shift some time and energy that way," said Allaster, whose departure takes effect on Oct. 2.
"When I joined the WTA my goal was to leave the organization on a stronger footing and I feel a humble sense of pride in what we have all accomplished here.
"I have focused on what it means to be a champion and I have tried to be a strong role model for women to encourage success in the sports industry."