2011 Dunlop World Challenge
The 2011 Dunlop World Challenge was a professional tennis tournament played on carpet courts. It was the fourth edition of the tournament which was part of the 2011 ATP Challenger Tour and the 2011 ITF Women's Circuit. It took place in Toyota, Japan between 21 and 27 November 2011.
| 2011 Dunlop World Challenge | |
|---|---|
| Date | 21–27 November | 
| Edition | 4th | 
| Location | Toyota, Japan | 
| Champions | |
| Men's singles | |
|  Tatsuma Ito | |
| Women's singles | |
|  Tamarine Tanasugarn | |
| Men's doubles | |
|  Hiroki Kondo /  Yi Chu-huan | |
| Women's doubles | |
|  Makoto Ninomiya /  Riko Sawayanagi | |
ATP entrants
    
    Seeds
    
| Country | Player | Rank1 | Seed | 
|---|---|---|---|
|  JPN | Go Soeda | 116 | 1 | 
|  JPN | Tatsuma Ito | 120 | 2 | 
|  JPN | Yūichi Sugita | 193 | 3 | 
|  THA | Danai Udomchoke | 211 | 4 | 
|  GER | Andre Begemann | 216 | 5 | 
|  MDA | Roman Borvanov | 221 | 6 | 
|  GER | Sebastian Rieschick | 262 | 7 | 
|  TPE | Jummy Wang | 287 | 8 | 
- 1 Rankings are as of November 14, 2011.
Other entrants
    
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
 Gao Wan Gao Wan
 Lee Jea-moon Lee Jea-moon
 Masatoshi Miyazaki Masatoshi Miyazaki
 Wang Chieh-fu Wang Chieh-fu
WTA entrants
    
    Seeds
    
| Country | Player | Rank1 | Seed | 
|---|---|---|---|
|  JPN | Kimiko Date-Krumm | 100 | 1 | 
|  JPN | Misaki Doi | 106 | 2 | 
|  NED | Michaëlla Krajicek | 107 | 3 | 
|  JPN | Erika Sema | 120 | 4 | 
|  THA | Tamarine Tanasugarn | 121 | 5 | 
|  TPE | Chan Yung-jan | 132 | 6 | 
|  JPN | Kurumi Nara | 143 | 7 | 
|  FRA | Caroline Garcia | 150 | 8 | 
- 1 Rankings are as of November 14, 2011.
Other entrants
    
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
 Chan Chin-wei Chan Chin-wei
 Yuka Higuchi Yuka Higuchi
 Nudnida Luangnam Nudnida Luangnam
 Ayumi Oka Ayumi Oka
The following players received entry by a lucky loser spot:
Champions
    
    Men's singles
    
 Tatsuma Ito def.
 Tatsuma Ito def.  Sebastian Rieschick, 6–4, 6–2
 Sebastian Rieschick, 6–4, 6–2
Women's singles
    
 Tamarine Tanasugarn def.
 Tamarine Tanasugarn def.  Kimiko Date-Krumm, 6–2, 7–5
 Kimiko Date-Krumm, 6–2, 7–5
Men's doubles
    
 Hiroki Kondo /
 Hiroki Kondo /  Yi Chu-huan vs.
 Yi Chu-huan vs.  Gao Peng /
 Gao Peng /  Gao Wan, 6–4, 6–1
 Gao Wan, 6–4, 6–1
Women's doubles
    
 Makoto Ninomiya /
 Makoto Ninomiya /  Riko Sawayanagi def.
 Riko Sawayanagi def.  Caroline Garcia /
 Caroline Garcia /  Michaëlla Krajicek, Walkover
 Michaëlla Krajicek, Walkover
