Marat Safin defeated Pete Sampras in the final, 6–4, 6–3, 6–3 to win the men's singles tennis title at the 2000 US Open. It was his first major title.
Defending champion Andre Agassi defeated Arnaud Clément in the final, 6–4, 6–2, 6–2 to win the men's singles tennis title at the 2001 Australian Open.
Defending champion Patrick Rafter defeated Mark Philippoussis in the all-Australian final, 6–3, 3–6, 6–2, 6–0 to win the men's singles tennis title at the 1998 US Open.
Mark Philippoussis was the defending champion but lost in the first round to Jordi Burillo.
Marat Safin defeated Harel Levy in the final, 6–2, 6–3 to win the men's singles tennis title at the 2000 Canadian Open.
Thomas Muster defeated Sergi Bruguera in the final, 7–6(8–6), 6–3, 6–1 to win the men's singles tennis title at the 1997 Miami Open.
Álex Corretja defeated Marcelo Ríos in the final, 7–5, 7–5, 6–3 to win the men's singles tennis title at the 1997 Italian Open.
Marcelo Ríos defeated Greg Rusedski in the final, 6–3, 6–7(15–17), 7–6(7–4), 6–4 to win the men's singles tennis title at the 1998 Indian Wells Masters.
Marcelo Ríos defeated Andre Agassi in the final, 7–5, 6–3, 6–4 to win the men's singles tennis title at the 1998 Miami Open. With the win, he completed the Sunshine Double.
Thomas Enqvist defeated Tim Henman in the final, 7–6(7–5), 6–4 to win the singles tennis title at the 2000 Cincinnati Masters.
Wayne Ferreira defeated Lleyton Hewitt in the final, 7–6(8–6), 3–6, 6–7(5–7), 7–6 (7–2), 6–2 to win the singles tennis title at the 2000 Eurocard Open.
Marat Safin defeated Mark Philippoussis in the final, 3–6, 7–6(9–7), 6–4, 3–6, 7–6(10–8) to win the singles tennis title at the 2000 Paris Masters. With the win, Safin became the world No. 1 for the first time.
Andre Agassi defeated Jan-Michael Gambill in the final, 7–6(7–4), 6–1, 6–0 to win the men's singles tennis title at the 2001 Miami Open. With the win, he completed the Sunshine Double.
Michael Chang was the defending champion, but chose not to participate that year due to a stomach muscle strain.
Nicolás Lapentti was the defending champion, but did not participate this year.
Jonas Björkman was the defending champion, but lost in the second round to Jason Stoltenberg.
Andre Agassi was the defending champion, but was defaulted in his second round match against Cecil Mamiit for swearing at a line judge.
The 1999 Kroger St. Jude International was a men's tennis tournament played on indoor Hard courts in Memphis, United States, that was part of the Championship Series of the 1999 ATP Tour. It was the twenty-ninth edition of the tournament and was held 15 February – 21 February.
Mark Philippoussis was the defending champion and successfully defended his title, by defeating Mikael Tillström 7–5, 4–6, 6–3 in the final.
Grant Connell and Patrick Galbraith were the defending champions, but lost in the second round to Mark Draper and Scott Draper.
Andre Agassi 
Jason Stoltenberg 
