| Birth Day | February 22, 1944 |
| Birth Place | Netherlands |
| Age | 80 YEARS OLD |
| Birth Sign | Pisces |
Right-handed player who in 1969 was the number-three ranked singles player, and part of the number-one ranked doubles team.
He won the Dutch Championship five consecutive years from 1964 to 1968, before turning professional.
During his career he won 520 matches, and lost only 216.
He raised three children with his wife Anna-Marie Okker.
He made one Grand Slam final, at the 1968 U.S. Open, where he lost to Arthur Ashe.
