title: 2005 AIG Japan Open Tennis Championships – Women's singles
text: # 2005 AIG Japan Open Tennis Championships – Women's singles
  
  Maria Sharapova was the two-time defending champion, but decided not to participate that year.
  
  Second-seeded Nicole Vaidišová was leading $7–6^{(7–4)},$ 3–2 in the final against third-seeded Tatiana Golovin, when Golovin retired due to an achilles tendon injury, giving Vaidišová the title. This remains one of the youngest finals in WTA history.
  
  ## Seeds
  
  * Vera Zvonareva (quarterfinals)
  * Nicole Vaidišová (champion)
  * Tatiana Golovin (final, retired due to an achilles tendon injury)
  * Maria Kirilenko (semifinals)
  * Ai Sugiyama (quarterfinals)
  * Gisela Dulko (second round)
  * Shinobu Asagoe (second round)
  * Sania Mirza (semifinals)
  
  ## 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 |
  | - | - | - | - | - | - | - | - |
  | 8 | Sania Mirza | 2 | 4 | | | | |
  | 3 | Tatiana Golovin | 6 | 6 | | | | |
  | 3 | Tatiana Golovin | 6 | 6 | 3 | Tatiana Golovin | $6^4$ | $2^r$ |
  | | | | | 2 | Nicole Vaidišová | $7^7$ | 3 |
  | 4 | Maria Kirilenko | 4 | 2 | 2 | Nicole Vaidišová | $7^7$ | 3 |
  | 2 | Nicole Vaidišová | 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 | V Zvonareva | 6 | $7^7$ | | | | | | | | | | | | | | | |
  | | C Castaño | 2 | $6^4$ | | 1 | V Zvonareva | 6 | 7 | | | | | | | | | | |
  | | M Bartoli | 4 | 4 | | | S Pe'er | 3 | 5 | | | | | | | | | | |
  | | S Pe'er | 6 | 6 | | | | | | | 1 | V Zvonareva | 7 | 2 | 4 | | | | |
  | | M Washington | $7^8$ | 1 | 1 | | | | | | 8 | S Mirza | 5 | 6 | 6 | | | | |
  | | A Nakamura | $6^6$ | 6 | 6 | | A Nakamura | 1 | 4 | | | | | | | | | | |
  | Q | V Castellvi | 1 | 3 | | 8 | S Mirza | 6 | 6 | | | | | | | | | | |
  | 8 | S Mirza | 6 | 6 | | | | | | | | | | | | 8 | S Mirza | 2 | 4 |
  | 3 | T Golovin | 6 | 6 | | | | | | | | | | | | 3 | T Golovin | 6 | 6 |
  | | A Spears | 4 | 2 | | 3 | T Golovin | 6 | 6 | | | | | | | | | | |
  | | M Suchá | 1 | 0 | | WC | S Obata | 1 | 4 | | | | | | | | | | |
  | WC | S Obata | 6 | 6 | | | | | | | 3 | T Golovin | 3 | 6 | 6 | | | | |
  | | C Pin | 5 | 6 | 6 | | | | | | 5 | A Sugiyama | 6 | 2 | 2 | | | | |
  | | L Granville | 7 | 1 | 4 | | C Pin | 6 | 3 | 4 | | | | | | | | | |
  | | A Jidkova | 1 | $6^5$ | | 5 | A Sugiyama | 3 | 6 | 6 | | | | | | | | | |
  | 5 | A Sugiyama | 6 | $7^7$ | | | | | | | | | | | | | | | |
  
  ### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 6 | G Dulko | 2 | 7 | 6 | | | | | | | | | | | | | | |
  | Q | S-w Hsieh | 6 | 5 | 2 | 6 | G Dulko | 3 | 3 | | | | | | | | | | |
  | | J Jackson | 6 | 1 | 1 | | J Craybas | 6 | 6 | | | | | | | | | | |
  | | J Craybas | 0 | 6 | 6 | | | | | | | J Craybas | 2 | 6 | 2 | | | | |
  | PR | H Nagyová | $6^7$ | 6 | 6 | | | | | | 4 | M Kirilenko | 6 | 4 | 6 | | | | |
  | | T Garbin | $7^9$ | 1 | 2 | PR | H Nagyová | 4 | 2 | | | | | | | | | | |
  | WC | A Morita | 4 | 4 | | 4 | M Kirilenko | 6 | 6 | | | | | | | | | | |
  | 4 | M Kirilenko | 6 | 6 | | | | | | | | | | | | 4 | M Kirilenko | 4 | 2 |
  | 7 | S Asagoe | 6 | 6 | | | | | | | | | | | | 2 | N Vaidišová | 6 | 6 |
  | | M Vento-Kabchi | 3 | 3 | | 7 | S Asagoe | 6 | 3 | 4 | | | | | | | | | |
  | Q | S Arvidsson | 1 | 6 | 6 | Q | S Arvidsson | 2 | 6 | 6 | | | | | | | | | |
  | Q | S Brémond | 6 | 3 | 0 | | | | | | Q | S Arvidsson | 6 | 3 | 2 | | | | |
  | | S Bammer | 6 | 5 | $0^r$ | | | | | | 2 | N Vaidišová | 2 | 6 | 6 | | | | |
  | | R Fujiwara | 0 | 7 | 0 | | R Fujiwara | 4 | 2 | | | | | | | | | | |
  | | A Morigami | 6 | 1 | 1 | 2 | N Vaidišová | 6 | 6 | | | | | | | | | | |
  | 2 | N Vaidišová | 4 | 6 | 6 | | | | | | | | | | | | | | |
  