2003 If Stockholm Open – Singles
In-game article clicks load inline without leaving the challenge.
Paradorn Srichaphan was the defending champion but lost in the first round to John van Lottum.
Mardy Fish won in the final 7–5, 3–6, 7–6(7–4) against Robin Söderling.
Seeds
- Thailand Paradorn Srichaphan (first round)
- Netherlands Sjeng Schalken (first round)
- Chile Nicolás Massú (first round)
- Chile Fernando González (second round)
- United States Mardy Fish (champion)
- Argentina Mariano Zabaleta (first round)
- South Africa Wayne Ferreira (first round)
- Finland Jarkko Nieminen (first round)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
Finals
| Semifinals | Final | ||||||||||||
| WC | Sweden Robin Söderling | 77 | 77 | ||||||||||
| Italy Davide Sanguinetti | 62 | 65 | |||||||||||
| WC | Sweden Robin Söderling | 5 | 6 | 64 | |||||||||
| 5 | United States Mardy Fish | 7 | 3 | 77 | |||||||||
| 5 | United States Mardy Fish | 6 | 7 | ||||||||||
| WC | Sweden Thomas Enqvist | 4 | 5 |
Top half
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | Thailand P Srichaphan | 5 | 1 | ||||||||||||||||||||||||
| Netherlands J van Lottum | 7 | 6 | Netherlands J van Lottum | 1 | 4 | ||||||||||||||||||||||
| Sweden A Vinciguerra | 6 | 2 | 1 | Sweden J Björkman | 6 | 6 | |||||||||||||||||||||
| Sweden J Björkman | 4 | 6 | 6 | Sweden J Björkman | 4 | 3 | |||||||||||||||||||||
| South Africa W Moodie | 6 | 3 | 3 | WC | Sweden R Söderling | 6 | 6 | ||||||||||||||||||||
| WC | Sweden R Söderling | 4 | 6 | 6 | WC | Sweden R Söderling | 6 | 6 | |||||||||||||||||||
| Argentina J I Chela | 6 | 6 | Argentina J I Chela | 4 | 3 | ||||||||||||||||||||||
| 7 | South Africa W Ferreira | 4 | 2 | WC | Sweden R Söderling | 77 | 77 | ||||||||||||||||||||
| 4 | Chile F González | 3 | 6 | 6 | Italy D Sanguinetti | 62 | 65 | ||||||||||||||||||||
| Slovakia K Beck | 6 | 1 | 1 | 4 | Chile F González | 6 | 4 | 5 | |||||||||||||||||||
| WC | Sweden J Johansson | 7 | 6 | WC | Sweden J Johansson | 4 | 6 | 7 | |||||||||||||||||||
| Q | Norway J F Andersen | 5 | 3 | WC | Sweden J Johansson | 3 | 2 | ||||||||||||||||||||
| Italy D Sanguinetti | 5 | Italy D Sanguinetti | 6 | 6 | |||||||||||||||||||||||
| United States J-M Gambill | 4 | r | Italy D Sanguinetti | 6 | 2 | 7 | |||||||||||||||||||||
| France G Carraz | 77 | 5 | 6 | France G Carraz | 3 | 6 | 5 | ||||||||||||||||||||
| 8 | Finland J Nieminen | 65 | 7 | 2 |
Bottom half
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | United States M Fish | 6 | 77 | ||||||||||||||||||||||||
| Q | Australia P Baccanello | 4 | 64 | 5 | United States M Fish | 6 | 6 | ||||||||||||||||||||
| Austria J Melzer | 1 | 1 | Q | France J Benneteau | 4 | 4 | |||||||||||||||||||||
| Q | France J Benneteau | 6 | 6 | 5 | United States M Fish | 6 | 67 | 77 | |||||||||||||||||||
| Croatia M Ančić | 6 | 6 | Croatia M Ančić | 4 | 79 | 64 | |||||||||||||||||||||
| Croatia I Karlović | 3 | 2 | Croatia M Ančić | 67 | 6 | 77 | |||||||||||||||||||||
| Netherlands R Sluiter | 6 | 3 | 7 | Netherlands R Sluiter | 79 | 4 | 63 | ||||||||||||||||||||
| 3 | Chile N Massú | 3 | 6 | 5 | 5 | United States M Fish | 6 | 7 | |||||||||||||||||||
| 6 | Argentina M Zabaleta | 2 | 4 | WC | Sweden T Enqvist | 4 | 5 | ||||||||||||||||||||
| Denmark K Carlsen | 6 | Denmark K Carlsen | 77 | 4 | 4 | ||||||||||||||||||||||
| Morocco H Arazi | 5 | 3 | WC | Sweden T Enqvist | 64 | 6 | 6 | ||||||||||||||||||||
| WC | Sweden T Enqvist | 7 | 6 | WC | Sweden T Enqvist | 6 | 6 | ||||||||||||||||||||
| Q | Belgium K Vliegen | 1 | 3 | United States R Ginepri | 3 | 4 | |||||||||||||||||||||
| United States R Ginepri | 6 | 6 | United States R Ginepri | 62 | 79 | 6 | |||||||||||||||||||||
| United States T Dent | 6 | 7 | United States T Dent | 77 | 67 | 4 | |||||||||||||||||||||
| 2 | Netherlands S Schalken | 3 | 5 |