# 2019 Challenger Banque Nationale de Granby – Women's singles

Julia Glushko was the defending champion, but chose not to participate.
Lizette Cabrera won the title, defeating Leylah Annie Fernandez in the final, 6–1, 6–4.

## Seeds

* Nao Hibino (second round)
* Rebecca Marino (first round, retired)
* Francesca Di Lorenzo (quarterfinals)
* Sachia Vickery (second round)
* Jessika Ponchet (withdrew)
* Katherine Sebov (semifinals)
* Maddison Inglis (quarterfinals)
* Olivia Rogowska (withdrew)
* Risa Ozaki (first round, retired)
* Momoko Kobori (first 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 |
| | Leylah Annie Fernandez | 6 | 5 | 7$^8$ | | | |
| WC | Françoise Abanda | 3 | 7 | 6$^6$ | | | |
| WC | Françoise Abanda | 3 | 7 | 6$^6$ | Leylah Annie Fernandez | 1 | 4 |
| | | | | | Lizette Cabrera | 6 | 6 |
| | Lizette Cabrera | 3 | 6 | 6 | Lizette Cabrera | 6 | 6 |
| 6 | Katherine Sebov | 6 | 1 | 0 | | | |

### Top half

| 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 | Semifinals |
| 1 | N Hibino | 6 | 6 | | | | | | | | | | | | | | |
| | E Webley-Smith | 2 | 4 | 1 | N Hibino | 3 | 6$^4$ | | | | | | | | | | |
| | LA Fernandez | 6 | 6 | | LA Fernandez | 6 | 7$^7$ | | | | | | | | | | |
| WC | P Januskova | 2 | 3 | | | | | | | LA Fernandez | 6 | 6 | | | | | |
| | E Halbauer | 6 | 6 | | | | | | 7 | M Inglis | 3 | 4 | | | | | |
| | H Kuwata | 4 | 1 | | E Halbauer | 7$^7$ | 6$^5$ | 4 | | | | | | | | | |
| Q | A Ghițescu | 4 | 5 | 7 | M Inglis | 6$^0$ | 7$^7$ | 6 | | | | | | | | | |
| 7 | M Inglis | 6 | 7 | | | | | | | | | | | LA Fernandez | 6 | 5 | 7$^8$ |
| 4 | S Vickery | 6 | 6 | | | | | | | | | | WC | F Abanda | 3 | 7 | 6$^6$ |
| Q | N Kukharchuk | 1 | 2 | 4 | S Vickery | 3 | 6 | 4 | | | | | | | | | |
| Q | I Neel | 2 | 2 | WC | F Abanda | 6 | 1 | 6 | | | | | | | | | |
| WC | F Abanda | 6 | 6 | | | | | | WC | F Abanda | 7$^7$ | 6 | | | | | |
| | O Tjandramulia | 3 | 3 | | | | | | | M Hibi | 6$^3$ | 3 | | | | | |
| | J Namigata | 6 | 6 | | J Namigata | 4 | 3 | | | | | | | | | | |
| | M Hibi | 6 | 6 | | M Hibi | 6 | 6 | | | | | | | | | | |
| 10 | M Kobori | 2 | 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 | Semifinals |
| 9 | R Ozaki | 6 | 4 | 1$^r$ | | | | | | | | | | | | | | |
| | Y Tanaka | 2 | 6 | 2 | | Y Tanaka | 4 | 3 | | | | | | | | | | |
| | L Cabrera | 6 | 7 | | | L Cabrera | 6 | 6 | | | | | | | | | | |
| | S Bandecchi | 3 | 5 | | | | | | | | L Cabrera | 7$^7$ | 6 | | | | | |
| Q | A Morgina | 3 | 2 | | | | | | | 3 | F Di Lorenzo | 6$^4$ | 3 | | | | | |
| | M Hontama | 6 | 6 | | | M Hontama | 1 | 3 | | | | | | | | | | |
| Q | E Routliffe | 2 | 0 | | 3 | F Di Lorenzo | 6 | 6 | | | | | | | | | | |
| 3 | F Di Lorenzo | 6 | 6 | | | | | | | | | | | | L Cabrera | 3 | 6 | 6 |
| 6 | K Sebov | 7 | 6 | | | | | | | | | | | 6 | K Sebov | 6 | 1 | 0 |
| | H Kaji | 5 | 3 | | 6 | K Sebov | 6 | 6 | | | | | | | | | | |
| | Q Gleason | 6 | 1 | 3 | WC | C Zhao | 0 | 2 | | | | | | | | | | |
| WC | C Zhao | 0 | 6 | 6 | | | | | | 6 | K Sebov | 6 | 6 | | | | | |
| LL | L Sleeth | 6 | 4 | 6 | | | | | | LL | L Sleeth | 2 | 1 | | | | | |
| | N Hanatani | 0 | 6 | 2 | LL | L Sleeth | 6 | 6$^4$ | 6 | | | | | | | | | |
| Q | A Arseneault | 7$^9$ | 2 | | Q | A Arseneault | 3 | 7$^7$ | 0 | | | | | | | | | |
| 2 | R Marino | 6$^7$ | 0$^r$ | | | | | | | | | | | | | | | |