2019 Challenger Banque Nationale de Granby

The 2019 Challenger Banque Nationale de Granby was a professional tennis tournament played on outdoor hard courts. It was the twenty-sixth (men) and ninth (women) editions of the tournament which was part of the 2019 ATP Challenger Tour and the 2019 ITF Women's World Tennis Tour. It took place in Granby, Quebec, Canada between 22 and 28 July 2019.

Seeds

 * 1 Rankings are as of July 15, 2019.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇦 Taha Baadi
 * 🇨🇦 Justin Boulais
 * 🇺🇸 Brandon Holt
 * 🇨🇦 Nicaise Muamba
 * 🇨🇦 Vasek Pospisil

The following players received entry into the singles main draw as alternates:
 * 🇸🇪 André Göransson
 * Sem Verbeek

The following players received entry into the singles main draw using their ITF World Tennis Ranking:
 * 🇺🇸 Jordi Arconada
 * 🇬🇧 Evan Hoyt
 * 🇺🇸 Alexander Lebedev
 * 🇹🇳 Skander Mansouri
 * 🇧🇪 Yannick Mertens
 * 🇯🇵 Issei Okamura
 * 🇨🇦 Joshua Peck

The following players received entry from the qualifying draw:
 * 🇨🇦 Kooros Ghasemi
 * 🇺🇸 Hunter Reese

Seeds

 * 1 Rankings are as of 15 July 2019.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇦 Françoise Abanda
 * 🇨🇦 Carson Branstine
 * 🇨🇦 Petra Januskova
 * 🇨🇦 Carol Zhao

The following players received entry from the qualifying draw:
 * 🇨🇦 Ariana Arseneault
 * 🇷🇴 Andreea Ghițescu
 * 🇷🇺 Nika Kukharchuk
 * 🇷🇺 Anna Morgina
 * 🇺🇸 Ingrid Neel
 * 🇳🇿 Erin Routliffe

The following player received entry as a Lucky Loser:
 * 🇨🇦 Layne Sleeth

Men's singles

 * 🇺🇸 Ernesto Escobedo def. 🇯🇵 Yasutaka Uchiyama 7–6(7–5), 6–4.

Women's singles

 * 🇦🇺 Lizette Cabrera def. 🇨🇦 Leylah Annie Fernandez, 6–1, 6–4

Men's doubles

 * 🇸🇪 André Göransson / Sem Verbeek def. 🇨🇳 Li Zhe /  Hugo Nys 6–2, 6–4.

Women's doubles

 * 🇯🇵 Haruka Kaji / 🇯🇵 Junri Namigata def. 🇺🇸 Quinn Gleason / 🇺🇸 Ingrid Neel, 7–6(7–5), 5–7, [10–8]