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Heather Watson has won a total of 9 titles throughout her tennis career. These titles include 5 singles titles and 4 doubles titles. Her most notable singles title came at the 2012 Japan Women's Open, where she defeated Kimiko Date-Krumm in the final. Watson has also won doubles titles at the 2014 Wimbledon Championships, the 2016 Miami Open, and the 2018 Indian Wells Masters.