# 2012 Challenger Banque Nationale de Granby – Women's singles

Stéphanie Dubois was the defending champion, but lost in the final 6–2, 5–2, retired to Eugenie Bouchard.

## Seeds

* Stéphanie Dubois (final)
* Alison Riske (quarterfinals)
* Victoria Larrière (first round, retired)
* Julie Coin (semifinals)
* Marie-Ève Pelletier (quarterfinals)
* Sharon Fichman (first round)
* Aiko Nakamura (quarterfinals)
* Julia Glushko (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 |
| 1 | Stéphanie Dubois | 6 | 7 | | | | |
| 8 | Julia Glushko | 1 | 5 | | | | |
| 8 | Julia Glushko | 1 | 5 | 1 | Stéphanie Dubois | 2 | 2$^r$ |
| | | | | | Eugenie Bouchard | 6 | 5 |
| 4 | Julie Coin | 4 | 2 | | Eugenie Bouchard | 6 | 5 |
| | Eugenie Bouchard | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | S Dubois | 6 | 6 | | | | | | | | | | | | | | |
| Q | M Miyamura | 2 | 2 | | 1 | S Dubois | 6 | 6 | | | | | | | | | |
| | S Akita | 1 | 7 | 3 | | C-y Hsu | 1 | 3 | | | | | | | | | |
| | C-y Hsu | 6 | 5 | 6 | | | | | | 1 | S Dubois | 6 | 6 | | | | |
| Q | D Damian | 1 | 4 | | | | | | | 7 | A Nakamura | 0 | 1 | | | | |
| Q | S Benamar | 6 | 6 | | Q | S Benamar | 2 | 6 | 0 | | | | | | | | |
| | N Rottmann | 0 | 6 | 3 | 7 | A Nakamura | 6 | 2 | 6 | | | | | | | | |
| 7 | A Nakamura | 6 | 4 | 6 | | | | | | | | | | 1 | S Dubois | 6 | 7 |
| 3 | V Larrière | 5 | 0$^r$ | | | | | | | | | | | 8 | J Glushko | 1 | 5 |
| | G Dabrowski | 7 | 3 | | | G Dabrowski | 7 | 7 | | | | | | | | | |
| | K Shlomo | 1 | 1 | | | S Aoyama | 5 | 5 | | | | | | | | | |
| | S Aoyama | 6 | 6 | | | | | | | | G Dabrowski | 3 | 2 | | | | |
| WC | E Routliffe | 1 | 5 | | | | | | | 8 | J Glushko | 6 | 6 | | | | |
| | J Jegiołka | 6 | 7 | | | J Jegiołka | 5 | 4 | | | | | | | | | |
| | A Mueller | 6$^2$ | 3 | | 8 | J Glushko | 7 | 6 | | | | | | | | | |
| 8 | J Glushko | 7$^7$ | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | 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 |
| 5 | M-È Pelletier | 6 | 3 | 6 | | | | | | | | | | | | | |
| WC | C Zhao | 0 | 6 | 2 | 5 | M-È Pelletier | 6 | 6 | | | | | | | | | |
| Q | S Krywacz | 4 | 4 | | Q | N Kukharchuk | 2 | 1 | | | | | | | | | |
| Q | N Kukharchuk | 6 | 6 | | | | | | 5 | M-È Pelletier | 3 | 2 | | | | | |
| | L Litvak | 3 | 7$^7$ | 3 | | | | | 4 | J Coin | 6 | 6 | | | | | |
| Q | A Yamasoto | 6 | 6$^5$ | 6 | Q | A Yamasoto | 2 | 4 | | | | | | | | | |
| | M Eguchi | 1 | 3 | | 4 | J Coin | 6 | 6 | | | | | | | | | |
| 4 | J Coin | 6 | 6 | | | | | | | | | | | 4 | J Coin | 4 | 2 |
| 6 | S Fichman | 3 | 2 | | | | | | | | | | | | E Bouchard | 6 | 6 |
| | E Bouchard | 6 | 6 | | | E Bouchard | 6 | 7 | | | | | | | | | |
| | J Elie | 1 | 6 | 4 | WC | F Abanda | 2 | 5 | | | | | | | | | |
| WC | F Abanda | 6 | 2 | 6 | | | | | | E Bouchard | 6 | 5 | 6 | | | | |
| Q | R Tedjakusuma | 6 | 6 | | | | | | 2 | A Riske | 3 | 7 | 2 | | | | |
| WC | C Petrick | 1 | 4 | | Q | R Tedjakusuma | 1 | 2 | | | | | | | | | |
| Q | D Ospina | 2 | 6 | 1 | 2 | A Riske | 6 | 6 | | | | | | | | | |
| 2 | A Riske | 6 | 3 | 6 | | | | | | | | | | | | | |