Todd Woodbridge and Mark Woodforde defeated Sébastien Lareau and Alex O'Brien in the final, 6–4, 5–7, 6–2, 7–6(7–3) to win the doubles tennis title at the 1996 ATP Tour World Championships. It was the Woodies' second Tour Finals title.
Jacco Eltingh and Paul Haarhuis were the defending champions, but Eltingh did not compete this year. Haarhuis competed with American Jared Palmer as the seventh seed, but they were eliminated in the second round by Javier Sánchez and Jan Siemerink.
Venus Williams and Justin Gimelstob defeated Helena Suková and Cyril Suk in the final, 6–2, 6–1 to win the Mixed Doubles title at the 1998 Australian Open.
Mariaan de Swardt and David Adams defeated Serena Williams and Max Mirnyi in the final, 6–4, 4–6, 7–6(7–5) to win the mixed doubles tennis title at the 1999 Australian Open.
Grant Stafford and Kevin Ullyett were the defending champions. Stafford chose to compete at Indianapolis in the same week. Ullyett partnered with Piet Norval but lost in the semifinals to the eventual champions Justin Gimelstob and Sébastien Lareau.
Justin Gimelstob and Sébastien Lareau won in the final over David Adams and John-Laffnie de Jager, 7–5, 6–7(2–7), 6–3.
Mahesh Bhupathi and Leander Paes defeated the defending champion Paul Haarhuis and his partner Jared Palmer in the final, 6–7(10–12), 6–3, 6–4, 7–6(7–4), to win the gentlemen's doubles title at the 1999 Wimbledon Championships.
Greg Rusedski was the defending champion, but did not participate.
Grant Stafford and Kevin Ullyett were the defending champions, but did not participate this year.
Justin Gimelstob and Richey Reneberg were the defending champions, but Gimelstob did not participate this year. Reneberg partnered Jared Palmer, successfully defending his title.
Justin Gimelstob and Graydon Oliver were the defending champions, but Oliver did not participate this year. Gimelstob partnered Nathan Healey and successfully defended his title.
Joshua Eagle and Andrew Florent were the defending champions, but did not participate together this year. Eagle partnered Patrick Rafter, losing in the quarterfinals. Florent partnered Andrew Kratzmann, losing in the first round.
Patrick Galbraith and Justin Gimelstob were the defending champions, but did not partner together this year. Galbraith partnered Brian MacPhie, losing in the quarterfinals. Gimelstob partnered Jared Palmer, losing in the first round.
Ellis Ferreira and Patrick Galbraith were the defending champions, but did not partner together this year. Ferreira partnered Rick Leach, losing in the first round. Galbraith partnered Brett Steven, losing in the first round.
Mark Petchey and Danny Sapsford were the defending champions, but did not partner together this year. Petchey partnered Sargis Sargsian, losing in the first round. Sapsford partnered Chris Wilkinson, losing in the final.
Rick Leach and Danie Visser were the defending champions, but did not partner together this year. Leach partnered Jared Palmer, losing in the semifinals. Visser partnered Patrick Galbraith, losing in the final.
Richard Krajicek and Jan Siemerink were the defending champions, but Krajicek did not participate this year. Siemerink partnered Daniel Vacek, losing in the semifinals.
Venus Williams and Justin Gimelstob defeated Serena Williams and Luis Lobo in the final, 6–4, 6–4 to win the mixed doubles tennis title at the 1998 French Open.
The 1999 AT&T Challenge was a men's tennis tournament played on Clay in Atlanta, Georgia, United States that was part of the World Series of the 1999 ATP Tour. It was the fourteenth edition of the tournament and was held from 26 April – 2 May 1999.
Todd Woodbridge and Mark Woodforde were the defending champions, but lost in the quarterfinals to tournament runners-up Justin Gimelstob and Patrick Rafter.
Patrick Rafter and Sandon Stolle were the defending champions, but Rafter did not compete this year. Stolle teamed up with Wayne Black and lost in the semifinals to Byron Black and Wayne Ferreira.
Patrick Galbraith 
Marius Barnard 
