 Allaster was named as one of the "Most Powerful Women in Sports" by Forbes Magazine and led the WTA through significant growth and under her leadership, she secured a media agreement that would maximise fan exposure to women's tennis globally.During her time with the WTA, she generated an estimated $1 billion in diversified contract revenues, built the brand globally, and was a strong advocate for gender equality.She announced her retirement as chief executive of the WTA on 22 September 2015 citing a personal change in priorities.