| Men's singles | |
|---|---|
| 2016 Challenger Banque Nationale de Granby | |
| Champion |  Frances Tiafoe |
| Runner-up |  Marcelo Arévalo |
| Final score | 6–1, 6–1 |
Vincent Millot was the defending champion, but lost in the second round to James McGee.
Frances Tiafoe won the title, defeating Marcelo Arévalo 6–1, 6–1 in the final.
Stéphane Robert (first round) Quentin Halys (first round)
Saketh Myneni (first round) Frances Tiafoe (champion)
Alejandro González (first round) Eduardo Struvay (first round, retired) Vincent Millot (second round) Grégoire Barrère (second round)| Semifinals | Final | ||||||||||||
| Marcelo Arévalo | 6 | 2 | 6 | ||||||||||
| Sekou Bangoura | 1 | 6 | 1 | ||||||||||
| Marcelo Arévalo | 1 | 1 | |||||||||||
| 4 | Frances Tiafoe | 6 | 6 | ||||||||||
| 4 | Frances Tiafoe | 6 | 77 | ||||||||||
| Q |  Yasutaka Uchiyama | 3 | 63 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | S Robert | 1 | 3 | ||||||||||||||||||||||||
| M Arévalo | 6 | 6 | M Arévalo | 77 | 6 | ||||||||||||||||||||||
| Q |  E Gómez | 4 | 4 | H Moriya | 64 | 4 | |||||||||||||||||||||
| H Moriya | 6 | 6 | M Arévalo | 6 | 6 | ||||||||||||||||||||||
| WC |  B Schnur | 2 | 6 | 2 | M Krueger | 1 | 4 | ||||||||||||||||||||
| M Krueger | 6 | 1 | 6 | M Krueger | 6 | 77 | |||||||||||||||||||||
 G Clezar | 4 | 6 | 2 | G Clezar | 4 | 63 | |||||||||||||||||||||
| 6 | E Struvay | 6 | 0 | 0r | M Arévalo | 6 | 2 | 6 | |||||||||||||||||||
| 3 | S Myneni | 1 | 3 | S Bangoura | 1 | 6 | 1 | ||||||||||||||||||||
 A Golubev | 6 | 6 | A Golubev | 1r | |||||||||||||||||||||||
| S Bangoura | 4 | 6 | 6 | S Bangoura | 5 | ||||||||||||||||||||||
| WC | F Auger-Aliassime | 6 | 4 | 3 | S Bangoura | 6 | 6 | ||||||||||||||||||||
| WC | D Shapovalov | 77 | 77 | WC | D Shapovalov | 4 | 3 | ||||||||||||||||||||
 L Saville | 62 | 64 | WC | D Shapovalov | 6 | 6 | |||||||||||||||||||||
 B Klein | 3 | 3 | 8 | G Barrère | 4 | 1 | |||||||||||||||||||||
| 8 | G Barrère | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | A González | 66 | 2 | ||||||||||||||||||||||||
| A Whittington | 78 | 6 | A Whittington | 65 | 6 | 6 | |||||||||||||||||||||
| P Polansky | 6 | 6 | P Polansky | 77 | 2 | 4 | |||||||||||||||||||||
| T Lamasine | 4 | 2 | A Whittington | 0 | 65 | ||||||||||||||||||||||
| L Broady | 4 | 65 | 4 | F Tiafoe | 6 | 77 | |||||||||||||||||||||
| J Ward | 6 | 77 | J Ward | 6 | 3 | 5 | |||||||||||||||||||||
| Q | E Corrie | 3 | 4 | 4 | F Tiafoe | 3 | 6 | 7 | |||||||||||||||||||
| 4 | F Tiafoe | 6 | 6 | 4 | F Tiafoe | 6 | 77 | ||||||||||||||||||||
| 7 | V Millot | 6 | 6 | Q | Y Uchiyama | 3 | 63 | ||||||||||||||||||||
| B Mitchell | 3 | 2 | 7 | V Millot | 6 | 1 | 4 | ||||||||||||||||||||
| Q |  J McGee | 6 | 6 | Q | J McGee | 3 | 6 | 6 | |||||||||||||||||||
 A Weintraub | 3 | 3 | Q | J McGee | 64 | 1 | |||||||||||||||||||||
| Q | Y Uchiyama | 4 | 6 | 6 | Q | Y Uchiyama | 77 | 6 | |||||||||||||||||||
| F Dancevic | 6 | 3 | 3 | Q | Y Uchiyama | 6 | 7 | ||||||||||||||||||||
| WC | P Bester | 6 | 77 | WC | P Bester | 4 | 5 | ||||||||||||||||||||
| 2 | Q Halys | 2 | 61 | ||||||||||||||||||||||||
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David Goffin was the defending champion but chose not to participate this year.
Somdev Devvarman was the defending champion but chose not to defend his title.
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Alexander Zverev was the defending champion and successfully defended his title, defeating Alex de Minaur in the final, 6–2, 6–4.
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