Allaster was a member of the Welland Tennis Club, where she learned how to play tennis. She also taught tennis to children and adults. After graduating from university, she worked for the Ontario Tennis Association as membership sales co-ordinator and director of player development.[4]
She became the Vice President of Sales and Marketing and Tournament Director of the Rogers Cup. On January 1, 2006, she was appointed to be the President of Women's Tennis Association, a newly created role in the organization.
In July 2009, Allaster was promoted to be the chairman and CEO of the WTA Tour, succeeding Larry Scott.[1]
In 2011, the WTA Board of Directors extended Allaster's CEO contract through 2017.[6]
While serving as CEO, the WTA secured one billion dollars in diversified contracted revenues. Allaster also oversaw the partnership of an international media agreement.[7]
On September 22, 2015 Allaster announced her retirement as chief executive of the WTA citing a personal change in priorities.[8] The transition took effect October 2, 2015.[7] On October 5, 2015, Steve Simon, the Tournament Director of the BNP Paribas Open was announced to succeed Allaster as the new WTA chairman and CEO.[9]
