| Men's singles | |
|---|---|
| 2001 Heineken Trophy | |
| Champion |  Lleyton Hewitt |
| Runner-up |  Guillermo Cañas |
| Score | 6–3, 6–4 |
| Draw | 32 (4 Q / 3 WC ) |
| Seeds | 8 |
Patrick Rafter was the defending champion but lost in the first round to Peter Wessels.
Lleyton Hewitt won in the final 6–3, 6–4 against Guillermo Cañas.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Lleyton Hewitt (champion) Patrick Rafter (first round)
Arnaud Clément (first round)
Roger Federer (semifinals)
Dominik Hrbatý (first round)
Hicham Arazi (second round)
Sjeng Schalken (quarterfinals)
Vladimir Voltchkov (first round)| First round | Second round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||||||||
| 1 | L Hewitt | 6 | 6 | |||||||||||||||||||||||||||||||
 D Sanguinetti | 2 | 1 | 1 | L Hewitt | 6 | 7 | ||||||||||||||||||||||||||||
| M Mirnyi | 65 | 63 | WC |  G Ivanišević | 4 | 5 | ||||||||||||||||||||||||||||
| WC | G Ivanišević | 77 | 77 | 1 | L Hewitt | 6 | 6 | |||||||||||||||||||||||||||
 M Gustafsson | 7 | 6 | Q |  G Elseneer | 2 | 4 | ||||||||||||||||||||||||||||
| WC | D van Scheppingen | 5 | 3 | M Gustafsson | 4 | 77 | 0 | |||||||||||||||||||||||||||
| Q | G Elseneer | 5 | 7 | 6 | Q | G Elseneer | 6 | 60 | 6 | |||||||||||||||||||||||||
| 8 | V Voltchkov | 7 | 5 | 0 | 1 | L Hewitt | 6 | 6 | ||||||||||||||||||||||||||
| 4 | R Federer | 77 | 6 | 4 | R Federer | 4 | 2 | |||||||||||||||||||||||||||
| A Dupuis | 63 | 4 | 4 | R Federer | 6 | 6 | ||||||||||||||||||||||||||||
 M Damm | 5 | 64 | WC | J van Lottum | 0 | 1 | ||||||||||||||||||||||||||||
| WC | J van Lottum | 7 | 77 | 4 | R Federer | 64 | 6 | 6 | ||||||||||||||||||||||||||
| R Sluiter | 6 | 6 | R Sluiter | 77 | 4 | 4 | ||||||||||||||||||||||||||||
| J Golmard | 0 | 4 | R Sluiter | 4 | ||||||||||||||||||||||||||||||
| N Escudé | 4 | 77 | 6 | N Escudé | 1r | |||||||||||||||||||||||||||||
| 5 | D Hrbatý | 6 | 63 | 3 | 1 | Lleyton Hewitt | 6 | 6 | ||||||||||||||||||||||||||
| 6 | H Arazi | 6 | 6 | Guillermo Cañas | 3 | 4 | ||||||||||||||||||||||||||||
| Q | D Petrovic | 3 | 2 | 6 | H Arazi | 3 | 3 | |||||||||||||||||||||||||||
| G Cañas | 6 | 6 | G Cañas | 6 | 6 | |||||||||||||||||||||||||||||
| Q |  K Capalik | 3 | 3 | G Cañas | 6 | 6 | ||||||||||||||||||||||||||||
| Q | Y Allegro | 69 | 6 | 6 | X Malisse | 3 | 4 | |||||||||||||||||||||||||||
| A Ilie | 711 | 1 | 1 | Q | Y Allegro | 5 | 4 | |||||||||||||||||||||||||||
| X Malisse | 6 | 6 | X Malisse | 7 | 6 | |||||||||||||||||||||||||||||
| 3 | A Clément | 4 | 4 | G Cañas | 7 | 6 | ||||||||||||||||||||||||||||
| 7 | S Schalken | 6 | 6 |  T Robredo | 5 | 4 | ||||||||||||||||||||||||||||
| J Siemerink | 3 | 4 | 7 | S Schalken | 78 | 6 | ||||||||||||||||||||||||||||
| T Zíb | 6 | 6 | T Zíb | 66 | 3 | |||||||||||||||||||||||||||||
| E Kempes | 4 | 1 | 7 | S Schalken | 3 | 4 | ||||||||||||||||||||||||||||
| T Robredo | 6 | 6 | T Robredo | 6 | 6 | |||||||||||||||||||||||||||||
| O Rochus | 4 | 1 | T Robredo | 77 | 6 | |||||||||||||||||||||||||||||
| P Wessels | 7 | 6 | P Wessels | 63 | 4 | |||||||||||||||||||||||||||||
| 2 | P Rafter | 5 | 4 | |||||||||||||||||||||||||||||||
Lleyton Hewitt defeated Pete Sampras in the final, 7–6(7–4), 6–1, 6–1 to win the men's singles tennis title at the 2001 US Open. It was his first major singles 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. It was his third Australian Open title and seventh major title overall.
Andrei Pavel defeated Patrick Rafter in the final, 7–6(7–3), 2–6, 6–3 to win the men's singles tennis title at the 2001 Canadian Open.
Todd Woodbridge was the defending champion, but lost to Jason Stoltenberg in the semifinals.
Lleyton Hewitt defeated Sébastien Grosjean in the final, 6–3, 6–3, 6–4 to win the singles tennis title at the 2001 Tennis Masters Cup. With his round-robin victory against Pat Rafter, Hewitt secured the year-end world No. 1 ranking for the first time. Gustavo Kuerten and Andre Agassi were in contention for the number 1 ranking before the tournament.
Max Mirnyi was the defending champion but lost in the semifinals to Juan Carlos Ferrero.
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. With the win, Ferreira ended a 4-year drought in his professional career, after winning his last tournament at Toronto in 1996.
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 Pete Sampras in the final, 7–6(7–5), 7–5, 6–1 to win the men's singles tennis title at the 2001 Indian Wells Masters.
Albert Portas defeated Juan Carlos Ferrero in the final, 4–6, 6–2, 0–6, 7–6(7–5), 7–5 to win the singles tennis title at the 2001 Hamburg European Open.
Gustavo Kuerten defeated Patrick Rafter in the final, 6–1, 6–3 to win the singles tennis title at the 2001 Cincinnati Masters.
Lleyton Hewitt was the defending champion and won in the final 6–4, 6–1 against Magnus Norman. Hewitt became only the second player in the history of the tournament who successfully defended the title, after Pete Sampras won both the 1993 and 1994 editions.
Nicolas Kiefer was the defending champion but lost in the first round to Patrick Rafter.
Mark Philippoussis was the defending champion but lost in the second round to Juan Balcells.
Gustavo Kuerten was the defending champion but was forced to retire in the final losing 4–2 against Patrick Rafter.
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.
Lleyton Hewitt was the defending champion but lost in the quarterfinals to Arnaud Clément.
Patrick Rafter was the defending champion but did not compete that year.
Hyung-Taik Lee was the defending champion but did not compete that year.
Patrick Rafter was the defending champion and won the title defeating Nicolas Escudé 6–1, 6–3 in the final to win his third consecutive Heineken Trophy.