# 2001 Heineken Trophy – Men's singles

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.

## Seeds

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)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking
| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | L Hewitt | 6 | 6 | | | | | | | | | | | | | | | | | | | |
| | D Sanguinetti | 2 | 1 | | 1 | L Hewitt | 6 | 7 | | | | | | | | | | | | | | |
| | M Mirnyi | 6$^5$ | 6$^3$ | | WC | G Ivanišević | 4 | 5 | | | | | | | | | | | | | | |
| WC | G Ivanišević | 7$^7$ | 7$^7$ | | | | | | | 1 | L Hewitt | 6 | 6 | | | | | | | | | |
| | M Gustafsson | 7 | 6 | | | | | | | Q | G Elseneer | 2 | 4 | | | | | | | | | |
| WC | D van Scheppingen | 5 | 3 | | | M Gustafsson | 4 | 7$^7$ | 0 | | | | | | | | | | | | | |
| Q | G Elseneer | 5 | 7 | 6 | Q | G Elseneer | 6 | 6$^0$ | 6 | | | | | | | | | | | | | |
| 8 | V Voltchkov | 7 | 5 | 0 | | | | | | | | | | | 1 | L Hewitt | 6 | 6 | | | | |
| 4 | R Federer | 7$^7$ | 6 | | | | | | | | | | | | 4 | R Federer | 4 | 2 | | | | |
| | A Dupuis | 6$^3$ | 4 | | 4 | R Federer | 6 | 6 | | | | | | | | | | | | | | |
| | M Damm | 5 | 6$^4$ | | WC | J van Lottum | 0 | 1 | | | | | | | | | | | | | | |
| WC | J van Lottum | 7 | 7$^7$ | | | | | | | 4 | R Federer | 6$^4$ | 6 | 6 | | | | | | | | |
| | R Sluiter | 6 | 6 | | | | | | | | R Sluiter | 7$^7$ | 4 | 4 | | | | | | | | |
| | J Golmard | 0 | 4 | | | R Sluiter | 4 | | | | | | | | | | | | | | | |
| | N Escudé | 4 | 7$^7$ | 6 | | N Escudé | 1$^r$ | | | | | | | | | | | | | | | |
| 5 | D Hrbatý | 6 | 6$^3$ | 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 | 6$^9$ | 6 | 6 | | | | | | | X Malisse | 3 | 4 | | | | | | | | | |
| | A Ilie | 7$^{11}$ | 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 | 7$^8$ | 6 | | | | | | | | | | | | | | |
| | T Zíb | 6 | 6 | | | T Zíb | 6$^6$ | 3 | | | | | | | | | | | | | | |
| | E Kempes | 4 | 1 | | | | | | | 7 | S Schalken | 3 | 4 | | | | | | | | | |
| | T Robredo | 6 | 6 | | | | | | | | T Robredo | 6 | 6 | | | | | | | | | |
| | O Rochus | 4 | 1 | | | T Robredo | 7$^7$ | 6 | | | | | | | | | | | | | | |
| | P Wessels | 7 | 6 | | | P Wessels | 6$^3$ | 4 | | | | | | | | | | | | | | |
| 2 | P Rafter | 5 | 4 | | | | | | | | | | | | | | | | | | | |