# 2001 BMW Open – Singles

Franco Squillari was the defending champion but lost in the quarterfinals to Bohdan Ulihrach.
Jiří Novák won in the final 6–4, 7–5 against Antony Dupuis.

## Seeds

* Yevgeny Kafelnikov (first round)
* Thomas Enqvist (second round)
* Franco Squillari (quarterfinals)
* Wayne Ferreira (first round)
* Thomas Johansson (second round)
* Marcelo Ríos (second round)
* Hicham Arazi (withdrew)
* Sjeng Schalken (second 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

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final |
| Younes El Aynaoui | 7 | 1 | 2 | | | |
| Antony Dupuis | 5 | 6 | 6 | | | |
| Antony Dupuis | 5 | 6 | 6 | Antony Dupuis | 4 | 5 |
| | | | | Jiří Novák | 6 | 7 |
| Bohdan Ulihrach | 4 | 4 | | Jiří Novák | 6 | 7 |
| Jiří Novák | 6 | 6 | | | | |

### Top half

| 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 |
| 1 | Y Kafelnikov | 7$^7$ | 5 | 3 | | | | | | | | | | | | | | |
| Q | W Eschauer | 6$^2$ | 7 | 6 | Q | W Eschauer | 6 | 1 | 0 | | | | | | | | | |
| | M Rosset | 6$^7$ | 2 | | Q | T Behrend | 2 | 6 | 6 | | | | | | | | | |
| Q | T Behrend | 7$^9$ | 6 | | | | | | | Q | T Behrend | 2 | 4 | | | | | |
| | J Boutter | 6 | 6$^5$ | 6$^3$ | | | | | | | Y El Aynaoui | 6 | 6 | | | | | |
| | Y El Aynaoui | 3 | 7$^7$ | 7$^7$ | | Y El Aynaoui | 6 | 6 | | | | | | | | | | |
| | N Davydenko | 6$^1$ | 3 | | 5 | T Johansson | 4 | 4 | | | | | | | | | | |
| 5 | T Johansson | 7$^7$ | 6 | | | | | | | | | | | | Y El Aynaoui | 7 | 1 | 2 |
| 4 | W Ferreira | 6 | 2 | 1 | | | | | | | | | | | A Dupuis | 5 | 6 | 6 |
| | A Dupuis | 3 | 6 | 6 | | A Dupuis | 7$^7$ | 6 | | | | | | | | | | |
| | A Vinciguerra | 6 | 6 | | | A Vinciguerra | 6$^5$ | 4 | | | | | | | | | | |
| Q | T Zíb | 4 | 1 | | | | | | | | A Dupuis | 3 | 7$^8$ | 6 | | | | |
| WC | B Phau | 7 | 1 | 1 | | | | | | Q | F Saretta | 6 | 6$^6$ | 2 | | | | |
| Q | F Saretta | 5 | 6 | 6 | Q | F Saretta | 6 | 6 | | | | | | | | | | |
| | S Sargsian | 2 | 4 | | 6 | M Ríos | 3 | 2 | | | | | | | | | | |
| 6 | M Ríos | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 8 | S Schalken | 6$^6$ | 6 | 6 | | | | | | | | | | | | |
| | N Lapentti | 7$^8$ | 3 | 4 | 8 | S Schalken | 7 | 3 | 6$^6$ | | | | | | | |
| | B Ulihrach | 6 | 3 | 6 | | B Ulihrach | 5 | 6 | 7$^8$ | | | | | | | |
| | D Sanguinetti | 4 | 6 | 0 | | | | | | | B Ulihrach | 6 | 6 | | | |
| | C Vinck | 7 | 6 | | | | | | | 3 | F Squillari | 4 | 4 | | | |
| | F Santoro | 5 | 1 | | | C Vinck | 2 | 5 | | | | | | | | |
| WC | G Ivanišević | 3 | 3 | | 3 | F Squillari | 6 | 7 | | | | | | | | |
| 3 | F Squillari | 6 | 6 | | | | | | | | | | | B Ulihrach | 4 | 4 |
| LL | D Melo | 5 | 7$^7$ | 3 | | | | | | | | | | J Novák | 6 | 6 |
| | W Arthurs | 7 | 6$^2$ | 6 | | W Arthurs | 6 | 6 | | | | | | | | |
| WC | E Benfele Álvarez | 1 | 6 | 5 | | R Schüttler | 4 | 4 | | | | | | | | |
| | R Schüttler | 6 | 3 | 7 | | | | | | | W Arthurs | 6$^3$ | 1 | | | |
| | J Novák | 6 | 7 | | | | | | | | J Novák | 7$^7$ | 6 | | | |
| LL | M Hipfl | 1 | 5 | | | J Novák | 1 | 6 | 7$^7$ | | | | | | | |
| | D Elsner | 4 | 1 | | 2 | T Enqvist | 6 | 2 | 6$^2$ | | | | | | | |
| 2 | T Enqvist | 6 | 6 | | | | | | | | | | | | | |