# 2015 Challenger Banque Nationale de Drummondville – Singles

Sam Groth was the defending champion, having won the event in 2014 in Rimouski, but decided not to participate this year.
John-Patrick Smith won the title, defeating Frank Dancevic 6–7$^{(11–13)}$, 7–6$^{(7–3)}$, 7–5 in the final.

## Seeds

* Lukáš Lacko (second round)
* Andreas Beck (second round)
* Luca Vanni (first round)
* Norbert Gombos (second round)
* Alejandro Falla (second round)
* Ruben Bemelmans (first round)
* Frank Dancevic (final)
* Maxime Authom (second round, retired)

## 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 | Final | Final |
| | John-Patrick Smith | 6 | 6 | | | | | |
| Alt | Germain Gigounon | 2 | 3 | | | | | |
| Alt | Germain Gigounon | 2 | 3 | | John-Patrick Smith | 6$^{11}$ | 7$^7$ | 7 |
| | | | | 7 | Frank Dancevic | 7$^{13}$ | 6$^3$ | 5 |
| 7 | Frank Dancevic | 6 | 6 | 7 | Frank Dancevic | 7$^{13}$ | 6$^3$ | 5 |
| Alt | Dimitar Kutrovsky | 2 | 4 | | | | | |

### 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 | L Lacko | 7 | 6 | | | | | | | | | | | | | | | |
| Q | A El Mihdawy | 5 | 4 | | 1 | L Lacko | 4 | 6 | 4 | | | | | | | | | |
| Q | K King | 6 | 4 | 6 | Q | K King | 6 | 4 | 6 | | | | | | | | | |
| | D Novikov | 4 | 6 | 3 | | | | | | Q | K King | 6$^6$ | 6 | 3 | | | | |
| | D Nguyen | 7$^9$ | 4 | 4 | | | | | | | J-P Smith | 7$^8$ | 3 | 6 | | | | |
| | J-P Smith | 6$^7$ | 6 | 6 | | J-P Smith | 3 | 6 | 6 | | | | | | | | | |
| Alt | J Jung | 2 | 6 | 1 | 5 | A Falla | 6 | 4 | 4 | | | | | | | | | |
| 5 | A Falla | 6 | 1 | 6 | | | | | | | | | | | | J-P Smith | 6 | 6 |
| 3 | L Vanni | 4 | 7 | 3 | | | | | | | | | | | Alt | G Gigounon | 2 | 3 |
| Alt | G Gigounon | 6 | 5 | 6 | Alt | G Gigounon | 7$^7$ | 6 | | | | | | | | | | |
| Alt | M Michalička | 6 | 6 | | Alt | M Michalička | 6$^5$ | 4 | | | | | | | | | | |
| Alt | G Escobar | 4 | 2 | | | | | | | Alt | G Gigounon | 7$^7$ | 3 | 7 | | | | |
| | J Jenkins | 6 | 2 | 7$^{10}$ | | | | | | | J Jenkins | 6$^5$ | 6 | 5 | | | | |
| WC | P Bester | 2 | 6 | 6$^8$ | | J Jenkins | 6 | 4 | | | | | | | | | | |
| WC | Pavel Krainik | 2 | 4 | | 8 | M Authom | 3 | 0$^r$ | | | | | | | | | | |
| 8 | M Authom | 6 | 6 | | | | | | | | | | | | | | | |

### 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 |
| 7 | F Dancevic | 6 | 6 | | | | | | | | | | | | | | |
| PR | T Sandgren | 3 | 3 | | 7 | F Dancevic | 6 | 6$^2$ | 7$^{10}$ | | | | | | | | |
| LL | F Wolmarans | 6 | 6 | | LL | F Wolmarans | 3 | 7$^7$ | 6$^8$ | | | | | | | | |
| Alt | E Struvay | 1 | 3 | | | | | | | 7 | F Dancevic | 6 | 6 | | | | |
| | E Corrie | 3 | 2 | | | | | | | Q | M Donati | 4 | 4 | | | | |
| Q | M Donati | 6 | 6 | | Q | M Donati | 7$^7$ | 6 | | | | | | | | | |
| | E Ymer | 1 | 0 | | 4 | N Gombos | 6$^5$ | 3 | | | | | | | | | |
| 4 | N Gombos | 6 | 6 | | | | | | | | | | | 7 | F Dancevic | 6 | 6 |
| 6 | R Bemelmans | 5 | 6 | 2 | | | | | | | | | | Alt | D Kutrovsky | 2 | 4 |
| Alt | D Kutrovsky | 7 | 0 | 6 | Alt | D Kutrovsky | 6 | 6 | | | | | | | | | |
| | Jules Marie | 6$^5$ | 2 | | | M Trungelliti | 4 | 4 | | | | | | | | | |
| | M Trungelliti | 7$^7$ | 6 | | | | | | | Alt | D Kutrovsky | 6 | 6 | | | | |
| | A Kuznetsov | 5 | 6 | 6 | | | | | | | A Kuznetsov | 4 | 3 | | | | |
| WC | David Volfson | 7 | 1 | 2 | | A Kuznetsov | 7 | 1 | 6 | | | | | | | | |
| WC | F Peliwo | 2 | 1 | | 2 | A Beck | 5 | 6 | 3 | | | | | | | | |
| 2 | A Beck | 6 | 6 | | | | | | | | | | | | | | |