| Singles | |
|---|---|
| 2015 Challenger Banque Nationale de Drummondville | |
| Champion |  John-Patrick Smith |
| Runner-up |  Frank Dancevic |
| Final score | 6–7(11–13), 7–6(7–3), 7–5 |
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.
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)| Semifinals | Final | ||||||||||||
| John-Patrick Smith | 6 | 6 | |||||||||||
| Alt | Germain Gigounon | 2 | 3 | ||||||||||
| John-Patrick Smith | 611 | 77 | 7 | ||||||||||
| 7 | Frank Dancevic | 713 | 63 | 5 | |||||||||
| 7 | Frank Dancevic | 6 | 6 | ||||||||||
| Alt |  Dimitar Kutrovsky | 2 | 4 | ||||||||||
| First round | Second round | Quarterfinals | 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 | 66 | 6 | 3 | |||||||||||||||||||
| D Nguyen | 79 | 4 | 4 | J-P Smith | 78 | 3 | 6 | ||||||||||||||||||||
| J-P Smith | 67 | 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 | 77 | 6 | |||||||||||||||||||
| Alt |  M Michalička | 6 | 6 | Alt | M Michalička | 65 | 4 | ||||||||||||||||||||
| Alt |  G Escobar | 4 | 2 | Alt | G Gigounon | 77 | 3 | 7 | |||||||||||||||||||
| J Jenkins | 6 | 2 | 710 | J Jenkins | 65 | 6 | 5 | ||||||||||||||||||||
| WC | P Bester | 2 | 6 | 68 | J Jenkins | 6 | 4 | ||||||||||||||||||||
| WC | Pavel Krainik | 2 | 4 | 8 | M Authom | 3 | 0r | ||||||||||||||||||||
| 8 | M Authom | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | F Dancevic | 6 | 6 | ||||||||||||||||||||||||
| PR | T Sandgren | 3 | 3 | 7 | F Dancevic | 6 | 62 | 710 | |||||||||||||||||||
| LL |  F Wolmarans | 6 | 6 | LL | F Wolmarans | 3 | 77 | 68 | |||||||||||||||||||
| 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 | 77 | 6 | ||||||||||||||||||||
 E Ymer | 1 | 0 | 4 | N Gombos | 65 | 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 | 65 | 2 |  M Trungelliti | 4 | 4 | ||||||||||||||||||||||
| M Trungelliti | 77 | 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 | ||||||||||||||||||||||||
James Blake was the defending champion, but lost in the quarterfinals to Sam Querrey.
Fabrice Santoro was the defending champion, and won in the final 6–3, 7–5, against Prakash Amritraj.
Dmitry Tursunov was the defending champion, but lost in the first round to Richard Gasquet.
Kei Nishikori was the defending champion, but chose not to participate this year.
Dawid Olejniczak was the defending champion, but lost to Im Kyu-tae in quarterfinals.
The qualifier Dick Norman won in the final 6–4, 6–7(6), 7–5, against Marcel Felder.
Bobby Reynolds was the defender of championship title; however, he lost to Ryan Sweeting in the first round.
John Isner won in the final 7–5, 6–4, against Donald Young.
Brendan Evans won in the final 6–7(4–7), 6–4, 7–6(7–4), against Ilija Bozoljac.
Feliciano López was the defending champion, but lost to Frank Dancevic in the first round.
Kevin Anderson won this tournament. He defeated Somdev Devvarman 4–6, 6–3, 6–2 in the final.
Donald Young was the defending champion but decided not to participate.
Tim Smyczek won the title, when Frank Dancevic retired in the final after losing the first set 5–7.
Lukáš Lacko was the defending champion but decided not to participate.
Dmitry Tursunov won the title, defeating Illya Marchenko 7–6(7–4), 6–7(5–7), 6–3 in the final.
Kevin Anderson was the defending champion, but lost to John Isner in the quarterfinals.
Vasek Pospisil was the defending champion but chose to compete at the 2013 Claro Open Colombia.
Adrian Ungur was the defending champion, but lost in the second round to Martín Cuevas.
Frank Dancevic was the defending champion, but decided to compete for the Philadelphia Freedoms of the World TeamTennis instead.
Marin Čilić was the two-time defending champion, but withdrew before the tournament started due to an arm injury.
Robby Ginepri was the defending champion, but did not participate.
Dominique Coene and Kristof Vliegen were the defending champions, but they did not compete in the Juniors this year.
Denis Istomin was the defending champion, but lost in the first round to Damir Džumhur.
Rajeev Ram was the defending champion, but lost in the second round to Dudi Sela.
Ivo Karlović was the defending champion, but lost in the quarterfinals to Peter Gojowczyk.