# 2017 Challenger Banque Nationale de Granby – Women's singles

Jennifer Brady was the defending champion, but she chose to compete in Sacramento instead.
Cristiana Ferrando won the title, defeating Katherine Sebov in the final, 6–2, 6–3.

## Seeds

* Bianca Andreescu (second round)
* Marie Bouzková (semifinals, retired)
* Chloé Paquet (second round)
* Olivia Rogowska (second round)
* Fanny Stollár (first round)
* Deniz Khazaniuk (first round)
* Katie Boulter (quarterfinals)
* Mayo Hibi (quarterfinals)

## 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 |
| | Katherine Sebov | 6 | 7 | | | |
| Q | Jessika Ponchet | 4 | 5 | | | |
| Q | Jessika Ponchet | 4 | 5 | Katherine Sebov | 2 | 3 |
| | | | | Cristiana Ferrando | 6 | 6 |
| | Cristiana Ferrando | 6 | 2 | Cristiana Ferrando | 6 | 6 |
| 2 | Marie Bouzková | 4 | 3$^r$ | | | |

### 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 | B Andreescu | 6 | 6 | | | | | | | | | | | | | | | |
| PR | K Birrell | 3 | 2 | | 1 | B Andreescu | 6$^3$ | 5 | | | | | | | | | | |
| | M Minokoshi | 4 | 4 | | | K Sebov | 7$^7$ | 7 | | | | | | | | | | |
| | K Sebov | 6 | 6 | | | | | | | | K Sebov | 6$^3$ | 6 | 7$^7$ | | | | |
| WC | C Zhao | 4 | 3 | | | | | | | 8 | M Hibi | 7$^7$ | 4 | 6$^1$ | | | | |
| | T Patterson | 6 | 6 | | | T Patterson | 6 | 2 | 1 | | | | | | | | | |
| WC | E Perez | 4 | 1 | | 8 | M Hibi | 3 | 6 | 6 | | | | | | | | | |
| 8 | M Hibi | 6 | 6 | | | | | | | | | | | | | K Sebov | 6 | 7 |
| 4 | O Rogowska | 6$^4$ | 6 | 6 | | | | | | | | | | | Q | J Ponchet | 4 | 5 |
| | R Yurovsky | 7$^7$ | 1 | 2 | 4 | O Rogowska | 3 | 4 | | | | | | | | | | |
| | M Imanishi | 3 | 3 | | Q | J Ponchet | 6 | 6 | | | | | | | | | | |
| Q | J Ponchet | 6 | 6 | | | | | | | Q | J Ponchet | 7$^7$ | 6 | | | | | |
| WC | C Robillard-Millette | 4 | 2 | | | | | | | | S-R Sekulic | 6$^4$ | 3 | | | | | |
| | A Wozniak | 6 | 6 | | | A Wozniak | 0 | 4 | | | | | | | | | | |
| | S-R Sekulic | 6$^5$ | 7$^8$ | 6 | | S-R Sekulic | 6 | 6 | | | | | | | | | | |
| 5 | F Stollár | 7$^7$ | 6$^6$ | 4 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | D Khazaniuk | 6 | 3 | 4 | | | | | | | | | | | | | |
| Q | C Van Nguyen | 0 | 6 | 6 | Q | C Van Nguyen | 1 | 3 | | | | | | | | | |
| Q | J Failla | 6$^2$ | 1 | | | A-S Mestach | 6 | 6 | | | | | | | | | |
| | A-S Mestach | 7$^7$ | 6 | | | | | | | | A-S Mestach | 2 | 5 | | | | |
| | C Ferrando | 7$^7$ | 6 | | | | | | | | C Ferrando | 6 | 7 | | | | |
| WC | C Branstine | 6$^3$ | 3 | | | C Ferrando | 6 | 6 | | | | | | | | | |
| | V Savinykh | 1 | 6$^5$ | | 3 | C Paquet | 2 | 4 | | | | | | | | | |
| 3 | C Paquet | 6 | 7$^7$ | | | | | | | | | | | | C Ferrando | 6 | 2 |
| 7 | K Boulter | 7 | 5 | 7 | | | | | | | | | | 2 | M Bouzková | 4 | 3$^r$ |
| | S Reix | 5 | 7 | 5 | 7 | K Boulter | 6 | 7$^7$ | | | | | | | | | |
| | H Kuwata | 4 | 7$^7$ | 4 | Q | A Guarachi | 0 | 6$^5$ | | | | | | | | | |
| Q | A Guarachi | 6 | 6$^3$ | 6 | | | | | | 7 | K Boulter | 5 | 2 | | | | |
| LL | E Bovina | 6$^3$ | 7$^7$ | 6 | | | | | | 2 | M Bouzková | 7 | 6 | | | | |
| | K Dunne | 7$^7$ | 6$^5$ | 1 | LL | E Bovina | 6 | 4 | 3 | | | | | | | | |
| | E Sema | 3 | 3 | | 2 | M Bouzková | 3 | 6 | 6 | | | | | | | | |
| 2 | M Bouzková | 6 | 6 | | | | | | | | | | | | | | |