# 2015 Challenger Banque Nationale de Granby – Women's singles

Miharu Imanishi was the defending champion, but decided not to participate this year.
Johanna Konta won the title, defeating Stéphanie Foretz 6–2, 6–4 in the final.

## Seeds

* Johanna Konta (champion)
* Naomi Osaka (first round)
* Stéphanie Foretz (final)
* Julie Coin (quarterfinals)
* Marcela Zacarías (first round)
* Olivia Rogowska (second round)
* Naomi Broady (quarterfinals)
* Amandine Hesse (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 | Johanna Konta | 6 | 7 | | | | |
| | Victoria Rodríguez | 0 | 5 | | | | |
| | Victoria Rodríguez | 0 | 5 | 1 | Johanna Konta | 6 | 6 |
| | | | | 3 | Stéphanie Foretz | 2 | 4 |
| 3 | Stéphanie Foretz | 6 | 7 | 3 | Stéphanie Foretz | 2 | 4 |
| | Jessica Moore | 2 | 5 | | | | |

### Top half

| 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 | J Konta | 7 | 6 | | | | | | | | | | | | | | |
| | B Štefková | 5 | 1 | 1 | J Konta | 7 | 6 | | | | | | | | | | |
| | A Koch | 6 | 7$^8$ | | A Koch | 5 | 0 | | | | | | | | | | |
| | A Mueller | 2 | 6$^6$ | | | | | | 1 | J Konta | 6 | 6 | | | | | |
| | H El Tabakh | 7 | 6 | | | | | | 7 | N Broady | 3 | 3 | | | | | |
| | A Guarachi | 5 | 4 | | H El Tabakh | 3 | 6 | 5 | | | | | | | | | |
| | D Lao | 1 | 3 | 7 | N Broady | 6 | 3 | 7 | | | | | | | | | |
| 7 | N Broady | 6 | 6 | | | | | | | | | | | 1 | J Konta | 6 | 7 |
| 4 | J Coin | 6 | 6 | | | | | | | | | | | | V Rodríguez | 0 | 5 |
| | E Webley-Smith | 3 | 1 | 4 | J Coin | 7 | 4 | 6 | | | | | | | | | |
| | C-y Hsu | 6 | 6 | | C-y Hsu | 5 | 6 | 4 | | | | | | | | | |
| | AP Neffa de los Ríos | 0 | 3 | | | | | | 4 | J Coin | 6 | 1 | 1 | | | | |
| | V Rodríguez | 6 | 6 | | | | | | | V Rodríguez | 3 | 6 | 6 | | | | |
| Q | M Patrascu | 2 | 4 | | V Rodríguez | 7$^7$ | 6 | | | | | | | | | | |
| | L Albanese | 4 | 4 | 6 | O Rogowska | 6$^2$ | 1 | | | | | | | | | | |
| 6 | O Rogowska | 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 |
| 8 | A Hesse | 6 | 6 | | | | | | | | | | | | | | | |
| Q | K Sebov | 3 | 3 | | 8 | A Hesse | 6 | 4 | 6$^5$ | | | | | | | | | |
| WC | A Broomfield | 2 | 2 | | WC | C Robillard-Millette | 0 | 6 | 7$^7$ | | | | | | | | | |
| WC | C Robillard-Millette | 6 | 6 | | | | | | | WC | C Robillard-Millette | 4 | 3 | | | | | |
| Q | A Inoue | 7 | 6 | | | | | | | 3 | S Foretz | 6 | 6 | | | | | |
| | F Abanda | 5 | 3 | | Q | A Inoue | 1 | 4 | | | | | | | | | | |
| | M Inoue | 1 | 6$^5$ | | 3 | S Foretz | 6 | 6 | | | | | | | | | | |
| 3 | S Foretz | 6 | 7$^7$ | | | | | | | | | | | | 3 | S Foretz | 6 | 7 |
| 5 | M Zacarías | 4 | 4 | | | | | | | | | | | | | J Moore | 2 | 5 |
| | C Zhao | 6 | 6 | | | C Zhao | 6 | 1 | 2 | | | | | | | | | |
| | S Sanders | 6$^3$ | 6 | 3 | | J Moore | 1 | 6 | 6 | | | | | | | | | |
| | J Moore | 7$^7$ | 3 | 6 | | | | | | | J Moore | 6$^5$ | 6 | 7$^7$ | | | | |
| WC | E Routliffe | 3 | 1 | | | | | | | Q | E Halbauer | 7$^7$ | 4 | 6$^5$ | | | | |
| Q | E Halbauer | 6 | 6 | | Q | E Halbauer | 6 | 4 | 6 | | | | | | | | | |
| WC | L Robson | 7$^7$ | 6$^5$ | 6 | WC | L Robson | 2 | 6 | 2 | | | | | | | | | |
| 2 | N Osaka | 6$^5$ | 7$^7$ | 3 | | | | | | | | | | | | | | |