| Singles | |
|---|---|
| 2001 Sybase Open | |
| Champion |  Greg Rusedski |
| Runner-up |  Andre Agassi |
| Score | 6–3, 6–4 |
| Draw | 32 (4Q / 3WC) |
| Seeds | 8 |
Mark Philippoussis was the defending champion but lost in the second round to Juan Balcells.
Greg Rusedski won in the final 6–3, 6–4 against Andre Agassi.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Andre Agassi (final)
Lleyton Hewitt (quarterfinals) Mark Philippoussis (second round)
Tommy Haas (quarterfinals)
Sjeng Schalken (first round) Jan-Michael Gambill (semifinals) Greg Rusedski (champion)Yevgeny Kafelnikov defeated Thomas Enqvist in the final, 4–6, 6–0, 6–3, 7–6(7–1) to win the men's singles tennis title at the 1999 Australian Open. It was his second and last major singles title, after his win at the 1996 French Open. With the win, Kafelnikov became the first Russian to win an Australian Open singles title.
Andre Agassi defeated Andriy Medvedev in the final, 1–6, 2–6, 6–4, 6–3, 6–4 to win the men's singles tennis title at the 1999 French Open. It was his first French Open title and fourth major title overall, becoming the second man in the Open Era to complete the career Grand Slam, and the first to do so across three surfaces. He also completed the career Super Slam, the only men's singles player to do so.
Two-time defending champion Pete Sampras defeated Andre Agassi in the final, 6–3, 6–4, 7–5 to win the gentlemen's singles tennis title at the 1999 Wimbledon Championships. It was his record-breaking sixth Wimbledon title and record-equalling twelfth major singles title overall. Sampras' victory over Agassi in the final is often cited as one of the greatest performances in a Wimbledon final. However, despite his victory, Sampras lost the world No. 1 ranking to Agassi, who had recently won the French Open and was attempting to complete the Channel Slam.
Andre Agassi defeated Todd Martin in the final, 6–4, 6–7(5–7), 6–7(2–7), 6–3, 6–2 to win the men's singles tennis title at the 1999 US Open. It was his second US Open title and fifth major title overall. With the win, Agassi returned to the world No. 1 singles ranking, ultimately ending Pete Sampras' record streak of six year-end No. 1 rankings.
Pete Sampras was the defending champion but lost in the final 6–4, 6–4 against Lleyton Hewitt.
Mark Philippoussis was the defending champion, but lost in the second round this year.
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.
Richard Krajicek defeated Yevgeny Kafelnikov in the final, 6–4, 6–3, 6–3 to win the singles tennis title at the 1998 Eurocard Open.
Greg Rusedski defeated the defending champion Pete Sampras in the final, 6–4, 7–6(7–4), 6–3 to win the singles tennis title at the 1998 Paris Open.
Mark Philippoussis defeated Carlos Moyá in the final, 5–7, 6–4, 6–4, 4–6, 6–2 to win the men's singles tennis title at the 1999 Indian Wells Masters.
Richard Krajicek defeated Sébastien Grosjean in the final, 4–6, 6–1, 6–2, 7–5 to win the men's singles tennis title at the 1999 Miami Open.
Gustavo Kuerten won the singles tennis title at the 1999 Monte Carlo Open when Marcelo Ríos retired from the final with the scoreline at 6–4, 2–1.
Andre Agassi defeated Marat Safin in the final, 7–6(7–1), 6–2, 4–6, 6–4 to win the singles tennis title at the 1999 Paris 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.
Magnus Larsson was the defending champion but did not compete that year.
The 2002 Siebel Open was a men's international tennis tournament that took place from February 25 to March 3, 2002. Greg Rusedski was the defending champion but lost in the second round to Todd Martin.
Andre Agassi was the defending champion but lost in the final 6–2, 6–3 against Pete Sampras.
Todd Martin was the defending champion but lost in the final 6–4, 7–6(7–2) against Pete Sampras.
Pete Sampras was the defending champion and won the final 3–6, 5–0 after Greg Rusedski was forced to retire.
Greg Rusedski was the defending champion, but lost in the second round to David Prinosil.
