# 2011 Fukuoka International Women's Cup – Singles

Junri Namigata was the defending champion but lost in the second round to Aiko Nakamura.
Tamarine Tanasugarn defeated Chan Yung-jan in the final 6–4, 5–7, 7–5.

## Seeds

* Junri Namigata (second round)
* Tamarine Tanasugarn (champion)
* Chan Yung-jan (final)
* Lee Jin-a (first round)
* Erika Sema (quarterfinals)
* Kumiko Iijima (semifinals)
* Kim So-jung (first round)
* Katie O'Brien (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 | Semifinals | Final | Final | Final | Final | Final |
| WC | Aiko Nakamura | 1 | 3 | | | | | | |
| 3 | Chan Yung-jan | 6 | 6 | | | | | | |
| 3 | Chan Yung-jan | 6 | 6 | | 3 | Chan Yung-jan | 4 | 7 | 5 |
| | | | | | 2 | Tamarine Tanasugarn | 6 | 5 | 7 |
| 6 | Kumiko Iijima | 6$^3$ | 6 | 2 | 2 | Tamarine Tanasugarn | 6 | 5 | 7 |
| 2 | Tamarine Tanasugarn | 7 | 4 | 6 | | | | | |

### Top half

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | J Namigata | 7 | 6 | | | | | | | | | | | | | |
| | R Tezuka | 6$^4$ | 4 | 1 | J Namigata | 4 | 2 | | | | | | | | | |
| | N Luangnam | 2 | 0 | WC | A Nakamura | 6 | 6 | | | | | | | | | |
| WC | A Nakamura | 6 | 6 | | | | | WC | A Nakamura | 2 | 6 | 7 | | | | |
| | N Hamamura | 7 | 7 | | | | | | N Hamamura | 6 | 2 | 5 | | | | |
| Q | M Miyamura | 5 | 6$^2$ | | N Hamamura | 6 | 6 | | | | | | | | | |
| | S Jones | 6 | 6 | | S Jones | 4 | 4 | | | | | | | | | |
| 7 | S-j Kim | 3 | 2 | | | | | | | | | | WC | A Nakamura | 1 | 3 |
| 3 | Y-j Chan | 6 | 6 | | | | | | | | | | 3 | Y-j Chan | 6 | 6 |
| | S Aoyama | 4 | 4 | 3 | Y-j Chan | 6 | 6 | | | | | | | | | |
| | Q Wang | 6 | 6 | | Q Wang | 1 | 1 | | | | | | | | | |
| | R Fujiwara | 4 | 4 | | | | | 3 | Y-j Chan | 6 | 6 | | | | | |
| Q | E Takao | 6 | 6 | | | | | Q | E Takao | 4 | 6$^4$ | | | | | |
| Q | K Ito | 2 | 4 | Q | E Takao | 7 | 7 | | | | | | | | | |
| | Y-r Lee | 3 | 4 | 8 | K O'Brien | 6$^1$ | 5 | | | | | | | | | |
| 8 | K O'Brien | 6 | 6 | | | | | | | | | | | | | |

### 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 | Semifinals |
| 6 | K Iijima | 6 | 6 | | | | | | | | | | | | | | | | |
| WC | Y Nakano | 1 | 2 | | 6 | K Iijima | 6 | 6 | | | | | | | | | | | |
| WC | A Yonemura | 6 | 2 | | WC | A Yonemura | 3 | 5 | | | | | | | | | | | |
| | C Okadaue | 1 | 1 | r | | | | | | 6 | K Iijima | 6 | 6$^4$ | 6 | | | | | |
| SE | E Webley-Smith | 4 | 6 | 6 | | | | | | SR | E Webley-Smith | 2 | 7 | 2 | | | | | |
| | W-h Hsu | 6 | 2 | 0 | SR | E Webley-Smith | 6 | 6$^6$ | 6 | | | | | | | | | | |
| WC | M Kato | 6 | 6 | | WC | M Kato | 2 | 7 | 2 | | | | | | | | | | |
| 4 | J-a Lee | 3 | 1 | | | | | | | | | | | | 6 | K Iijima | 6$^3$ | 6 | 2 |
| 5 | E Sema | 6 | 7 | | | | | | | | | | | | 2 | T Tanasugarn | 7 | 4 | 6 |
| Q | M Inoue | 4 | 6$^5$ | | 5 | E Sema | 1 | 6 | 7 | | | | | | | | | | |
| | R Fuda | 7 | 6 | | | R Fuda | 6 | 4 | 6$^1$ | | | | | | | | | | |
| SR | M Adamczak | 5 | 2 | | | | | | | 5 | E Sema | 2 | 3 | | | | | | |
| | S Akita | 1 | 6$^3$ | | | | | | | 2 | T Tanasugarn | 6 | 6 | | | | | | |
| | S Ishizu | 6 | 7 | | | S Ishizu | 6 | 0 | 3 | | | | | | | | | | |
| | S Zheng | 4 | 0 | | 2 | T Tanasugarn | 4 | 6 | 6 | | | | | | | | | | |
| 2 | T Tanasugarn | 6 | 6 | | | | | | | | | | | | | | | | |