# 2001 Heineken Open – Singles

Magnus Norman was the defending champion of the singles event at the Heineken Open tennis tournament, held in Auckland, New Zealand, but did not compete that year.
Dominik Hrbatý won in the final 6–4, 2–6, 6–3 against Francisco Clavet.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Franco Squillari (first round)
* Dominik Hrbatý (champion)
* Jan-Michael Gambill (quarterfinals)
* Gastón Gaudio (quarterfinals)
* Byron Black (second round)
* Marcelo Ríos (second round)
* Thomas Johansson (quarterfinals)
* Fernando Vicente (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 | Final |
| 1 | F Squillari | 6$^4$ | 2 | | | | | | | | | | | | | | | | | | | | |
| | S Koubek | 7$^7$ | 6 | | | S Koubek | 6 | 7$^7$ | | | | | | | | | | | | | | | |
| | Á Calatrava | 6 | 1 | 6 | | Á Calatrava | 3 | 6$^5$ | | | | | | | | | | | | | | | |
| | A Calleri | 3 | 6 | 3 | | | | | | | S Koubek | 2 | 7 | 5 | | | | | | | | | |
| WC | G Rusedski | 6 | 6 | | | | | | | WC | G Rusedski | 6 | 5 | 7 | | | | | | | | | |
| WC | M Nielsen | 4 | 4 | | WC | G Rusedski | 6 | 7$^7$ | | | | | | | | | | | | | | | |
| | A Portas | 6 | 2 | 4 | 5 | B Black | 1 | 6$^3$ | | | | | | | | | | | | | | | |
| 5 | B Black | 2 | 6 | 6 | | | | | | | | | | | WC | G Rusedski | 3 | 2 | | | | | |
| 3 | J Gambill | 7$^7$ | 6 | | | | | | | | | | | | | F Clavet | 6 | 6 | | | | | |
| SE | N Massú | 6$^4$ | 4 | | 3 | J Gambill | 6 | 6 | | | | | | | | | | | | | | | |
| | A Vinciguerra | 6 | 6 | | | A Vinciguerra | 4 | 4 | | | | | | | | | | | | | | | |
| | H Levy | 3 | 4 | | | | | | | 3 | J Gambill | 4 | 4 | | | | | | | | | | |
| | F Clavet | 6 | 4 | 6 | | | | | | | F Clavet | 6 | 6 | | | | | | | | | | |
| | J I Chela | 3 | 6 | 3 | | F Clavet | 3 | 6 | 7$^7$ | | | | | | | | | | | | | | |
| Q | M Russell | 6 | 6 | | Q | M Russell | 6 | 1 | 6$^5$ | | | | | | | | | | | | | | |
| 8 | F Vicente | 2 | 2 | | | | | | | | | | | | | | | | | Francisco Clavet | 4 | 6 | 3 |
| 6 | M Ríos | 6 | 1 | 6$^2$ | | | | | | | | | | | | | | | 2 | Dominik Hrbatý | 6 | 2 | 6 |
| | A di Pasquale | 3 | 6 | 7$^7$ | | A di Pasquale | 2 | 6 | 1 | | | | | | | | | | | | | | |
| | O Rochus | 6 | 3 | 3 | Q | G Weiner | 6 | 3 | 6 | | | | | | | | | | | | | | |
| Q | G Weiner | 4 | 6 | 6 | | | | | | Q | G Weiner | 3 | 4 | | | | | | | | | | |
| SE | M Tabara | 4 | 4 | | | | | | | | J Balcells | 6 | 6 | | | | | | | | | | |
| | J Balcells | 6 | 6 | | | J Balcells | 6 | 6 | | | | | | | | | | | | | | | |
| | A Medvedev | 6 | 6 | | | A Medvedev | 2 | 4 | | | | | | | | | | | | | | | |
| 4 | G Gaudio | 3 | 3 | | | | | | | | | | | | | J Balcells | 6$^2$ | 3 | | | | | |
| 7 | T Johansson | 6 | 6 | | | | | | | | | | | | 2 | D Hrbatý | 7$^7$ | 6 | | | | | |
| | J Boutter | 4 | 4 | | 7 | T Johansson | 6 | 6 | | | | | | | | | | | | | | | |
| Q | M Martelli | 6 | 7$^7$ | | Q | M Martelli | 4 | 3 | | | | | | | | | | | | | | | |
| | D Sanguinetti | 4 | 6$^1$ | | | | | | | 7 | T Johansson | 7$^7$ | 3 | 2 | | | | | | | | | |
| | M Zabaleta | 7 | 7 | | | | | | | 2 | D Hrbatý | 6$^4$ | 6 | 6 | | | | | | | | | |
| WC | F Mantilla | 5 | 5 | | | M Zabaleta | 6 | 3 | 3 | | | | | | | | | | | | | | |
| Q | A Gaudenzi | 5 | 3 | | 2 | D Hrbatý | 4 | 6 | 6 | | | | | | | | | | | | | | |
| 2 | D Hrbatý | 7 | 6 | | | | | | | | | | | | | | | | | | | | |