About Tom Okker
Thomas Samuel Okker, nicknamed "the Flying Dutchman", is a Dutch former tennis player who was active from the mid-1960s until 1980. He won the 1973 French Open Doubles, the 1976 US Open Doubles, and two gold medals at the 1965 Maccabiah Games in Israel. He was ranked among the world's top-ten singles players for seven consecutive years, 1968–74, reaching a career high of world No. 3 in 1974. He also was ranked world No. 1 in doubles in 1979. Okker was awarded the first prize money at the 1968 U.S. In 1968, his first year as a registered professional, he won in singles and in doubles (with Marty Riessen) at the Italian Open.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.