title: 2001 AIG Japan Open Tennis Championships – Men's singles
text: # 2001 AIG Japan Open Tennis Championships – Men's singles
  
  Sjeng Schalken was the defending champion but lost in the quarterfinals to Michel Kratochvil.
  
  Lleyton Hewitt won in the final 6–4, 6–2 against Kratochvil.
  
  ## Seeds
  
  The top eight seeds received a bye to the second round.
  
  * Lleyton Hewitt (champion)
  * Sjeng Schalken (quarterfinals)
  * Rainer Schüttler (third round)
  * Jonas Björkman (third round)
  * Michel Kratochvil (final)
  * Michael Chang (third round)
  * Marcelo Ríos (quarterfinals)
  * Francisco Clavet (quarterfinals)
  * Lars Burgsmüller (third round)
  * Harel Levy (second round)
  * Nicolás Massú (third round)
  * Andrew Ilie (first round)
  * Álex Calatrava (first round)
  * Wayne Arthurs (second round)
  * Michael Russell (third round)
  * Ramón Delgado (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 | Final |
  | - | - | - | - | - | - | - | - |
  | 1 | Lleyton Hewitt | 6 | 6 | | | | |
  | | James Blake | 4 | 0 | | | | |
  | | James Blake | 4 | 0 | 1 | Lleyton Hewitt | 6 | 6 |
  | | | | | 5 | Michel Kratochvil | 4 | 2 |
  | | Karol Kučera | 0 | 3 | 5 | Michel Kratochvil | 4 | 2 |
  | 5 | Michel Kratochvil | 6 | 6 | | | | |
  
  ### Top half
  
  **Section 1**
  
  | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | 1 | L Hewitt | 6 | 6 | | | | | | | | | | |
  | | J Delgado | 4 | 4 | | M-K Goellner | 2 | 2 | | | | | | | | | | |
  | | M-K Goellner | 6 | 6 | | | | | | 1 | L Hewitt | 6 | 6 | | | | | |
  | Q | J Thomas | 3 | 2 | | | | | | 15 | M Russell | 1 | 1 | | | | | |
  | | C Mamiit | 6 | 6 | | C Mamiit | 6 | 4 | 3 | | | | | | | | | |
  | | N Godwin | 4 | $6^1$ | 15 | M Russell | 3 | 6 | 6 | | | | | | | | | |
  | 15 | M Russell | 6 | $7^7$ | | | | | | | | | | 1 | L Hewitt | 4 | 6 | 6 |
  | 11 | N Massú | 6 | 6 | | | | | | | | | | 8 | F Clavet | 6 | 4 | 2 |
  | | E Kempes | 4 | 4 | 11 | N Massú | 6 | $7^7$ | | | | | | | | | | |
  | | Y-I Yoon | 3 | 1 | | T Zíb | 3 | $6^4$ | | | | | | | | | | |
  | | T Zíb | 6 | 6 | | | | | | 11 | N Massú | 3 | 4 | | | | | |
  | | N Thomann | 3 | 1 | | | | | | 8 | F Clavet | 6 | 6 | | | | | |
  | | T Behrend | 6 | 6 | | T Behrend | $6^7$ | 2 | | | | | | | | | | |
  | | | | | 8 | F Clavet | $7^9$ | 6 | | | | | | | | | | |
  
  **Section 2**
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 4 | J Björkman | 6 | 6 | | | | | | | | | |
  | Q | M Onoda | 4 | 4 | | WC | H Kondo | 1 | 3 | | | | | | | | | |
  | WC | H Kondo | 6 | 6 | | | | | | 4 | J Björkman | 1 | 5 | | | | | |
  | | J Blake | 6 | 6 | | | | | | | J Blake | 6 | 7 | | | | | |
  | WC | Y Ishii | 3 | 4 | | | J Blake | $7^7$ | 7 | | | | | | | | | |
  | Q | R Žitko | 2 | $7^7$ | 1 | 14 | W Arthurs | $6^4$ | 5 | | | | | | | | | |
  | 14 | W Arthurs | 6 | $6^3$ | 6 | | | | | | | | | | J Blake | 4 | 6 | 6 |
  | 10 | H Levy | 6 | 6 | | | | | | | | | | 7 | M Ríos | 6 | 4 | 1 |
  | Q | S Iwabuchi | 3 | 3 | | 10 | H Levy | 5 | 0 | | | | | | | | | |
  | Q | D Udomchoke | 6 | 4 | 6 | Q | D Udomchoke | 7 | 6 | | | | | | | | | |
  | | B Cowan | 2 | 6 | 3 | | | | | Q | D Udomchoke | 3 | 2 | | | | | |
  | | B Black | 6 | 6 | | | | | | 7 | M Ríos | 6 | 6 | | | | | |
  | | E Taino | 4 | 1 | | | B Black | 2 | 5 | | | | | | | | | |
  | | | | | | 7 | M Ríos | 6 | 7 | | | | | | | | | |
  
  ### Bottom half
  
  **Section 3**
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 6 | M Chang | 6 | 6 | | | | | | | | | |
  | | A Pretzsch | $6^3$ | $7^7$ | 6 | | A Pretzsch | 3 | 4 | | | | | | | | | |
  | | P Srichaphan | $7^7$ | $6^5$ | 1 | | | | | | 6 | M Chang | $6^3$ | 2 | | | | |
  | | S Sargsian | 6 | 6 | | | | | | | WC | T Suzuki | $7^7$ | 6 | | | | |
  | | A Sá | 2 | 3 | | | S Sargsian | 5 | 6 | 4 | | | | | | | | |
  | WC | T Suzuki | 5 | 6 | 6 | WC | T Suzuki | 7 | 4 | 6 | | | | | | | | |
  | 12 | A Ilie | 7 | 2 | 4 | | | | | | | | | | WC | T Suzuki | 3 | 3 |
  | 16 | R Delgado | 6 | 6 | | | | | | | | | | | | K Kučera | 6 | 6 |
  | WC | G Motomura | 4 | 4 | | 16 | R Delgado | 4 | 4 | | | | | | | | | |
  | | K Kučera | 6 | 4 | 6 | | K Kučera | 6 | 6 | | | | | | | | | |
  | | A Simoni | 3 | 6 | 1 | | | | | | | K Kučera | 6 | 6 | | | | |
  | | M Lee | 4 | 2 | | | | | | | 3 | R Schüttler | 2 | 2 | | | | |
  | | M Larsson | 6 | 6 | | | M Larsson | 3 | 5 | | | | | | | | | |
  | | | | | | 3 | R Schüttler | 6 | 7 | | | | | | | | | |
  
  **Section 4**
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | | | | | | 5 | M Kratochvil | $7^7$ | 1 | 6 | | | | | | | | |
  | | O Fukárek | 6 | $7^7$ | | | O Fukárek | $6^3$ | 6 | 4 | | | | | | | | |
  | Q | D Vacek | 2 | $6^3$ | | | | | | | 5 | M Kratochvil | 6 | 6 | | | | |
  | | H-T Lee | $7^{13}$ | 6 | | | | | | | 9 | L Burgsmüller | 3 | 2 | | | | |
  | | M Hantschk | $6^{11}$ | 4 | | | H-T Lee | 6 | 3 | 5 | | | | | | | | |
  | | M Llodra | $6^3$ | 6 | 2 | 9 | L Burgsmüller | 3 | 6 | 7 | | | | | | | | |
  | 9 | L Burgsmüller | $7^7$ | 2 | 6 | | | | | | | | | | 5 | M Kratochvil | 6 | 6 |
  | 13 | Á Calatrava | 3 | 1 | | | | | | | | | | | 2 | S Schalken | 3 | 4 |
  | | I Heuberger | 6 | 6 | | | I Heuberger | 3 | 6 | 6 | | | | | | | | |
  | Q | N Behr | 6 | 6 | | Q | N Behr | 6 | 4 | 4 | | | | | | | | |
  | WC | T Terachi | 2 | 1 | | | | | | | | I Heuberger | 2 | 2 | | | | |
  | | I Labadze | $7^7$ | 3 | 5 | | | | | | 2 | S Schalken | 6 | 6 | | | | |
  | | C Vinck | $6^3$ | 6 | 7 | | C Vinck | 3 | 4 | | | | | | | | | |
  | | | | | | 2 | S Schalken | 6 | 6 | | | | | | | | | |
  