Kiki Bertens is a Dutch tennis player who turned professional in 2009. Her highest WTA singles ranking is No. 13, which she reached in August 2018. Her career high in doubles is world No. 16, achieved in April 2018. To date, she has won six singles and ten doubles titles on the WTA Tour. Bertens is widely regarded as a clay-court specialist, but also is successful on hard courts. She is coached by Raemon Sluiter.