# 2012 Challenger Banque Nationale de Granby – Men's singles

Édouard Roger-Vasselin was the defending champion but decided not to participate. Vasek Pospisil defeated Igor Sijsling in the final 7–6$^{(7–2)}$, 6–4.

## Seeds

* Vasek Pospisil (champion)
* Igor Sijsling (final)
* Frank Dancevic (second round)
* Danai Udomchoke (semifinals)
* Maxime Authom (quarterfinals)
* James Duckworth (quarterfinals)
* Érik Chvojka (first round)
* Thomas Fabbiano (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 | Semifinals | Final | Final | Final | Final |
| 1 | Vasek Pospisil | 6$^4$ | 7 | 6 | | | | |
| WC | Philip Bester | 7$^7$ | 5 | 4 | | | | |
| WC | Philip Bester | 7$^7$ | 5 | 4 | 1 | Vasek Pospisil | 7$^7$ | 6 |
| | | | | | 2 | Igor Sijsling | 6$^2$ | 4 |
| 4 | Danai Udomchoke | 7$^7$ | 3 | 4 | 2 | Igor Sijsling | 6$^2$ | 4 |
| 2 | Igor Sijsling | 6$^3$ | 6 | 6 | | | | |

### 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 | Semifinals |
| 1 | V Pospisil | 6$^6$ | 7$^7$ | 3 | | | | | | | | | | | | | | | |
| | B Mitchell | 7$^8$ | 6$^1$ | 1$^r$ | 1 | V Pospisil | 4 | 7$^7$ | 6 | | | | | | | | | | |
| | D Garza | 6 | 6 | | | D Garza | 6 | 6$^3$ | 0 | | | | | | | | | | |
| Q | Isade Juneau | 2 | 4 | | | | | | | 1 | V Pospisil | 6 | 1 | 6 | | | | | |
| | F Peliwo | 4 | 6$^6$ | | | | | | | 8 | T Fabbiano | 2 | 6 | 4 | | | | | |
| | R Borvanov | 6 | 7$^8$ | | | R Borvanov | 1 | 4 | | | | | | | | | | | |
| Q | T Suzuki | 3 | 2 | | 8 | T Fabbiano | 6 | 6 | | | | | | | | | | | |
| 8 | T Fabbiano | 6 | 6 | | | | | | | | | | | | 1 | V Pospisil | 6$^4$ | 7 | 6 |
| 3/WC | F Dancevic | 6 | 6 | | | | | | | | | | | | WC | P Bester | 7$^7$ | 5 | 4 |
| | R Ghedin | 2 | 2 | | 3/WC | F Dancevic | 6$^3$ | 4 | | | | | | | | | | | |
| WC | P Bester | 4 | 7$^7$ | 6 | WC | P Bester | 7$^7$ | 6 | | | | | | | | | | | |
| | T Matsui | 6 | 6$^2$ | 4 | | | | | | WC | P Bester | 7 | 6 | | | | | | |
| | A El Mihdawy | 6 | 6 | | | | | | | | A El Mihdawy | 5 | 3 | | | | | | |
| | R Bloomfield | 2 | 2 | | | A El Mihdawy | 1 | 7 | 6 | | | | | | | | | | |
| | Charles-Antoine Brézac | 6 | 7 | | | C-A Brézac | 6 | 5 | 4 | | | | | | | | | | |
| 7 | É Chvojka | 4 | 5 | | | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 6 | J Duckworth | 6 | 4 | 6 | | | | | | | | | | | | | | | |
| Q | Reid Carleton | 3 | 6 | 4 | 6 | J Duckworth | 5 | 7 | 7$^7$ | | | | | | | | | | |
| | Takuto Niki | 3 | 6$^3$ | | | B Strode | 7 | 5 | 6$^2$ | | | | | | | | | | |
| | B Strode | 6 | 7$^7$ | | | | | | | 6 | J Duckworth | 6$^7$ | 1 | | | | | | |
| WC | Pavel Krainik | 6$^3$ | 1 | | | | | | | 4 | D Udomchoke | 7$^9$ | 6 | | | | | | |
| | K Kim | 7$^7$ | 6 | | | K Kim | 4 | 1 | | | | | | | | | | | |
| | M Reid | 1 | 4 | | 4 | D Udomchoke | 6 | 6 | | | | | | | | | | | |
| 4 | D Udomchoke | 6 | 6 | | | | | | | | | | | | 4 | D Udomchoke | 7$^7$ | 3 | 4 |
| 5 | M Authom | 7$^7$ | 6 | | | | | | | | | | | | 2 | I Sijsling | 6$^3$ | 6 | 6 |
| | D Kosakowski | 6$^4$ | 4 | | 5 | M Authom | 3 | 6 | 7 | | | | | | | | | | |
| Q | Milan Pokrajac | 6 | 6 | | Q | M Pokrajac | 6 | 1 | 5 | | | | | | | | | | |
| WC | Samuel Monette | 4 | 2 | | | | | | | 5 | M Authom | 6$^7$ | 6 | 1 | | | | | |
| | Y Uchiyama | 7$^9$ | 2 | 6 | | | | | | 2 | I Sijsling | 7$^9$ | 4 | 6 | | | | | |
| | Clément Reix | 6$^7$ | 6 | 3 | | Y Uchiyama | 6$^2$ | 2 | | | | | | | | | | | |
| | J Peers | 6$^3$ | 5 | | 2 | I Sijsling | 7$^7$ | 6 | | | | | | | | | | | |
| 2 | I Sijsling | 7$^7$ | 7 | | | | | | | | | | | | | | | | |