# 2001 If Stockholm Open – Singles

Thomas Johansson was the defending champion but lost in the quarterfinals to Jarkko Nieminen.
Sjeng Schalken won in the final 3–6, 6–3, 6–3, 4–6, 6–3 against Nieminen.

## Seeds

* Lleyton Hewitt (withdrew because of a back injury)
* Sébastien Grosjean (second round)
* Thomas Johansson (quarterfinals)
* Guillermo Cañas (semifinals)
* Thomas Enqvist (semifinals)
* Sjeng Schalken (champion)
* Younes El Aynaoui (second round)
* Wayne Ferreira (quarterfinals)

## 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

### Final

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final | Final |
| 6 | Sjeng Schalken | 6 | 6 | | | | | | | |
| 4 | Guillermo Cañas | 4 | 2 | | | | | | | |
| 4 | Guillermo Cañas | 4 | 2 | 6 | Sjeng Schalken | 3 | 6 | 6 | 4 | 6 |
| | | | | Q | Jarkko Nieminen | 6 | 3 | 3 | 6 | 3 |
| Q | Jarkko Nieminen | 7$^7$ | 6 | Q | Jarkko Nieminen | 6 | 3 | 3 | 6 | 3 |
| 5 | Thomas Enqvist | 6$^4$ | 3 | | | | | | | |

### Section 1

| 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 | Semifinals |
| LL | J Vacek | 6 | 7$^8$ | | | | | | | | | | | | | |
| | D Sánchez | 3 | 6$^6$ | LL | J Vacek | 6 | 3 | 6 | | | | | | | | |
| | F Clavet | 4 | 3 | | M Gustafsson | 3 | 6 | 3 | | | | | | | | |
| | M Gustafsson | 6 | 6 | | | | | | LL | J Vacek | 3 | 6$^3$ | | | | |
| | W Arthurs | 6 | 6 | | | | | | 6 | S Schalken | 6 | 7$^7$ | | | | |
| Q | P Wessels | 3 | 4 | | W Arthurs | 4 | 3 | | | | | | | | | |
| Q | J van Lottum | 1 | 3 | 6 | S Schalken | 6 | 6 | | | | | | | | | |
| 6 | S Schalken | 6 | 6 | | | | | | | | | | 6 | S Schalken | 6 | 6 |
| 4 | G Cañas | 6 | 6 | | | | | | | | | | 4 | G Cañas | 4 | 2 |
| | N Kiefer | 3 | 2 | 4 | G Cañas | 6 | 6 | | | | | | | | | |
| WC | M Larsson | 6 | 7 | WC | M Larsson | 2 | 3 | | | | | | | | | |
| Q | B Bryan | 4 | 5 | | | | | | 4 | G Cañas | 6 | 6 | | | | |
| | A Vinciguerra | 6 | 7$^7$ | | | | | | 8 | W Ferreira | 3 | 1 | | | | |
| WC | J Johansson | 3 | 6$^4$ | | A Vinciguerra | 7$^7$ | 6$^6$ | 6$^3$ | | | | | | | | |
| | C Rochus | 5 | 2 | 8 | W Ferreira | 6$^3$ | 7$^8$ | 7$^7$ | | | | | | | | |
| 8 | W Ferreira | 7 | 6 | | | | | | | | | | | | | |

### Section 2

| 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 |
| 7 | Y El Aynaoui | 7$^7$ | 6 | | | | | | | | | | | | | | | |
| | F Squillari | 6$^5$ | 4 | | 7 | Y El Aynaoui | 3 | 1 | | | | | | | | | | |
| | K Pless | 6$^1$ | 3 | | Q | J Nieminen | 6 | 6 | | | | | | | | | | |
| Q | J Nieminen | 7$^7$ | 6 | | | | | | | Q | J Nieminen | 6 | 6 | | | | | |
| | C Pioline | 6 | 6 | | | | | | | 3 | T Johansson | 2 | 4 | | | | | |
| | J Björkman | 3 | 4 | | | C Pioline | 1 | 7 | 3 | | | | | | | | | |
| | M Hipfl | 7$^7$ | 4 | 1$^r$ | 3 | T Johansson | 6 | 5 | 6 | | | | | | | | | |
| 3 | T Johansson | 6$^4$ | 6 | 4 | | | | | | | | | | | Q | J Nieminen | 7$^7$ | 6 |
| 5 | T Enqvist | 7 | 6 | | | | | | | | | | | | 5 | T Enqvist | 6$^4$ | 3 |
| | M Tabara | 5 | 3 | | 5 | T Enqvist | 7 | 6 | | | | | | | | | | |
| | R Delgado | 3 | 3 | | WC | R Söderling | 5 | 3 | | | | | | | | | | |
| WC | R Söderling | 6 | 6 | | | | | | | 5 | T Enqvist | 6 | 6$^7$ | 7 | | | | |
| | M Ríos | 6 | 3 | 6 | | | | | | | M Ríos | 4 | 7$^9$ | 5 | | | | |
| | M Russell | 2 | 6 | 4 | | M Ríos | 6 | 6 | | | | | | | | | | |
| | M Philippoussis | 2 | 7 | 2 | 2 | S Grosjean | 3 | 4 | | | | | | | | | | |
| 2 | S Grosjean | 6 | 5 | 6 | | | | | | | | | | | | | | |