Who had a higher singles ranking, Paul Haarhuis or Katarina Srebotnik?
Paul Haarhuis Paul Vincent Nicholas Haarhuis (born 19 February 1966) is a Dutch former professional tennis player. He is a former World No. 1 doubles player and reached a career-high singles ranking of World No. 18 in November 1995. He won six Grand Slam men's doubles titles, five with Jacco Eltingh and one with Yevgeny Kafelnikov.
Jan Hajer Jan Hajer (born 31 March 1942) is a Dutch former tennis player. He was national champion in 1963. He won the final by winning over Willem Maris, Dutch National Champion in 1962. In 1964 Jan Hajer lost the final of the Dutch National Championship against Tom Okker. Later Hajer and Okker represented the Netherlands in the Davis Cup team. Hajer had a relative short international tennis career and participated in Wimbledon three times. In 1967 he reached the second round which he lost in five sets to Jaidip Mukerjea. Hajer and Okker competed in doubles events in South Africa, Philippines and Australia.