He is the older brother of Cara and Wayne Black. While attending Prince Edward, Black who was just 13 years old defeated an 18 year old opponent from Oriels with a score of 6-1 6-1.
He attended the University of Southern California and was named and an All-American by the Intercollegiate Tennis Association (ITA). In 1995 Black was a US Open quarterfinalist and in 2000 he reached the same round at Wimbledon. An accomplished doubles player, Black became World No. 1 in doubles in February 1994. He won the 1994 French Open partnering Jonathan Stark. Black was a doubles finalist in three other majors, the 94 and 2001 Australian Opens and 1996 Wimbledon. Black is one of the few professional players to have played with a double-handed forehand.
Black formed the core of the Zimbabwean Davis Cup team with his brother Wayne. Black was awarded the Arthur Ashe Sportsmanship Award in 1990.