title: 1998 Porsche Tennis Grand Prix – Singles
text: # 1998 Porsche Tennis Grand Prix – Singles
  
  Martina Hingis was the defending champion, but lost in the quarterfinals to Dominique Van Roost.
  
  Sandrine Testud won the title, defeating Lindsay Davenport in final 7–5, 6–3.
  
  ## Seeds
  
  A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top four seeds received a bye to the second round.
  
  * Martina Hingis (quarterfinals)
  * Lindsay Davenport (final)
  * Jana Novotná (second round)
  * Arantxa Sánchez Vicario (semifinals)
  * Venus Williams (second round)
  * Conchita Martínez (second round)
  * Nathalie Tauziat (quarterfinals)
  * Patty Schnyder (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
  
  ### Final
  
  | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - |
  | WC | Dominique Van Roost | 2 | 0 | | | | |
  | | Sandrine Testud | 6 | 6 | | | | |
  | | Sandrine Testud | 6 | 6 | | Sandrine Testud | 7 | 6 |
  | | | | | 2 | Lindsay Davenport | 5 | 3 |
  | 4 | Arantxa Sánchez Vicario | 6 | 4 | 2 | Lindsay Davenport | 5 | 3 |
  | 2 | Lindsay Davenport | 7 | 6 | | | | |
  
  ### Section 1
  
  | 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 | M Hingis | 1 | 6 | 6 | | | | | | | | | |
  | | A Kournikova | 1 | 6 | 7 | | A Kournikova | 6 | 2 | 2 | | | | | | | | | |
  | Q | B Schett | 6 | 4 | 6 | | | | | | 1 | M Hingis | 3 | 7 | 4 | | | | |
  | | M Serna | 6 | 5 | 2 | | | | | | WC | D Van Roost | 6 | 6 | 6 | | | | |
  | WC | D Van Roost | 2 | 7 | 6 | WC | D Van Roost | 6 | 6 | | | | | | | | | | |
  | | S Farina | 2 | 6 | 3 | 5 | V Williams | 1 | 2 | | | | | | | | | | |
  | 5 | V Williams | 6 | 4 | 6 | | | | | | | | | | | WC | D Van Roost | 2 | 0 |
  | | | | | | | | | | | | | | | | | S Testud | 6 | 6 |
  | | | | | | 3 | J Novotná | 6 | 3 | 0/r | | | | | | | | | |
  | Q | K Hrdličková | 6 | 6 | 0 | | S Williams | 2 | 6 | 2 | | | | | | | | | |
  | | S Williams | 7 | 3 | 6 | | | | | | | S Williams | 3 | 6 | 1 | | | | |
  | | S Testud | 5 | 6 | 6 | | | | | | | S Testud | 6 | 1 | 6 | | | | |
  | | E Likhovtseva | 7 | 1 | 0 | | S Testud | 6 | 4 | 6 | | | | | | | | | |
  | | A Huber | 6 | 6 | | | A Huber | 2 | 6 | 2 | | | | | | | | | |
  | 8 | P Schnyder | 4 | 1 | | | | | | | | | | | | | | | |
  
  ### 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 |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | WC/6 | C Martínez | 3 | 6 | 6 | | | | | | | | | | | | | | |
  | | I Spîrlea | 6 | 2 | 2 | WC/6 | C Martínez | 4 | 6 | 2 | | | | | | | | | |
  | | L Raymond | 3 | 6 | 6 | | L Raymond | 6 | 2 | 6 | | | | | | | | | |
  | | R Dragomir | 6 | 2 | 4 | | | | | | | L Raymond | 6 | 5 | 2 | | | | |
  | Q | A Mauresmo | 6 | 6 | | | | | | | 4 | A Sánchez Vicario | 1 | 7 | 6 | | | | |
  | WC | A Glass | 2 | 1 | | Q | A Mauresmo | 3 | 2 | | | | | | | | | | |
  | | | | | | 4 | A Sánchez Vicario | 6 | 6 | | | | | | | | | | |
  | | | | | | | | | | | | | | | | 4 | A Sánchez Vicario | 6 | 4 |
  | 7 | N Tauziat | 6 | 6 | 6 | | | | | | | | | | | 2 | L Davenport | 7 | 6 |
  | | K Po | 4 | 7 | 2 | 7 | N Tauziat | 6 | 6 | | | | | | | | | | |
  | | N Zvereva | 6 | 6 | | | N Zvereva | 3 | 3 | | | | | | | | | | |
  | Q | J Kandarr | 3 | 2 | | | | | | | 7 | N Tauziat | 6 | 5 | | | | | |
  | | M Pierce | 6 | 6 | | | | | | | 2 | L Davenport | 7 | 7 | | | | | |
  | | A Coetzer | 2 | 2 | | | M Pierce | 1 | 3 | | | | | | | | | | |
  | | | | | | 2 | L Davenport | 6 | 6 | | | | | | | | | | |
  