| Men's singles | |
|---|---|
| 2017 Winnipeg National Bank Challenger | |
| Champion |  Blaž Kavčič |
| Runner-up |  Peter Polansky |
| Score | 7–5, 3–6, 7–5 |
Go Soeda was the defending champion but chose not to defend his title.
Blaž Kavčič won the title after defeating Peter Polansky 7–5, 3–6, 7–5 in the final.
Blaž Kavčič (champion) Peter Polansky (final)
Tatsuma Ito (first round) Yasutaka Uchiyama (semifinals) Hiroki Moriya (first round) Steven Diez (first round) Brayden Schnur (quarterfinals) Blaž Rola (second round)| Semifinals | Final | ||||||||||||
| 1 | Blaž Kavčič | 77 | 6 | ||||||||||
 Edan Leshem | 60 | 3 | |||||||||||
| 1 | Blaž Kavčič | 7 | 3 | 7 | |||||||||
| 2 | Peter Polansky | 5 | 6 | 5 | |||||||||
| 4 | Yasutaka Uchiyama | 4 | 6 | 2 | |||||||||
| 2 | Peter Polansky | 6 | 4 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | B Kavčič | 4 | 6 | 7 | |||||||||||||||||||||||
| F Dancevic | 6 | 3 | 5 | 1 | B Kavčič | 6 | 6 | ||||||||||||||||||||
| K Uchida | 6 | 6 | K Uchida | 3 | 4 | ||||||||||||||||||||||
| Q |  LD Martínez | 3 | 1 | 1 | B Kavčič | 6 | 6 | ||||||||||||||||||||
 B Mousley | 6 | 6 |  R Sarmiento | 2 | 2 | ||||||||||||||||||||||
| WC | Hugo Di Feo | 1 | 1 | B Mousley | 6 | 65 | 4 | ||||||||||||||||||||
| R Sarmiento | 6 | 6 | R Sarmiento | 1 | 77 | 6 | |||||||||||||||||||||
| 6 | S Diez | 1 | 4 | 1 | B Kavčič | 77 | 6 | ||||||||||||||||||||
| 3 | T Ito | 2 | 66 | E Leshem | 60 | 3 | |||||||||||||||||||||
| Q | R Schneider | 6 | 78 | Q | R Schneider | 6 | 3 | 3 | |||||||||||||||||||
| E Leshem | 77 | 2 | 6 | E Leshem | 3 | 6 | 6 | ||||||||||||||||||||
 A Bega | 63 | 6 | 3 | E Leshem | 77 | 6 | |||||||||||||||||||||
| Y Takahashi | 6 | 6 | Y Takahashi | 64 | 3 | ||||||||||||||||||||||
| WC | JM Lin | 2 | 0 | Y Takahashi | 7 | 2 | 6 | ||||||||||||||||||||
| WC | Samuel Monette | 6 | 6 | WC | S Monette | 5 | 6 | 2 | |||||||||||||||||||
| 5 | H Moriya | 0 | 1 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | B Rola | 77 | 78 | ||||||||||||||||||||||||
| P Bester | 64 | 66 | 8 | B Rola | 4 | 4 | |||||||||||||||||||||
| M Purcell | 6 | 6 | M Purcell | 6 | 6 | ||||||||||||||||||||||
 T Chen | 2 | 4 | M Purcell | 4 | 0 | ||||||||||||||||||||||
 F Tearney | 3 | 1 | 4 | Y Uchiyama | 6 | 6 | |||||||||||||||||||||
| M Giron | 6 | 6 | M Giron | 4 | 6 | 2 | |||||||||||||||||||||
| S Bangoura | 6 | 4 | 3 | 4 | Y Uchiyama | 6 | 4 | 6 | |||||||||||||||||||
| 4 | Y Uchiyama | 3 | 6 | 6 | 4 | Y Uchiyama | 4 | 6 | 2 | ||||||||||||||||||
| 7 | B Schnur | 6 | 77 | 2 | P Polansky | 6 | 4 | 6 | |||||||||||||||||||
| F Peliwo | 2 | 64 | 7 | B Schnur | 6 | 6 | |||||||||||||||||||||
| A Sarkissian | 62 | 4 | Q |  L Bambridge | 4 | 4 | |||||||||||||||||||||
| Q | L Bambridge | 77 | 6 | 7 | B Schnur | 3 | 78 | 62 | |||||||||||||||||||
| WC | Nicaise Muamba | 1 | 2 | 2 | P Polansky | 6 | 66 | 77 | |||||||||||||||||||
| Q | A Rybakov | 6 | 6 | Q | A Rybakov | 4 | 4 | ||||||||||||||||||||
| C Harrison | 3 | 2 | 2 | P Polansky | 6 | 6 | |||||||||||||||||||||
| 2 | P Polansky | 6 | 6 | ||||||||||||||||||||||||
Paolo Lorenzi unsuccessfully defended his title, and was eliminated by Antonio Veić in the first round.
Blaž Kavčič was the defending champion, but lost to his compatriot Aljaž Bedene in the second round.
Guillaume Rufin was the defending champion but decided not to participate.
Simone Bolelli won the title, defeating Blaž Kavčič 6–3, 6–4 in the final.
Blaž Kavčič was the defending champion but lost in the second round.
João Sousa defeated Wayne Odesnik 3–6, 6–3, 6–4 in the final to win the title.
Marin Čilić was the defending champion, but withdrew with a knee injury before the tournament began.
Tommy Robredo won the title, defeating Fabio Fognini in the final, 6–0, 6–3.
Michael Berrer was the defending champion, but lost in the quarterfinal to Peter Gojowczyk.
Grega Žemlja was the defending champion but chose not to compete.
Gilles Müller was the defending champion, but chose not to participate.
Chase Buchanan and Blaž Rola were the defending champions but chose not to defend their title.
Dudi Sela was the defending champion but chose not to defend his title.
Quentin Halys was the defending champion but chose not to defend his title.
Peter Polansky was the defending champion but lost in the final to Denis Shapovalov.
Frances Tiafoe was the defending champion but chose not to defend his title.
Florian Mayer was the defending champion but chose not to defend his title.
This was the first edition of the men's tournament.
Jack Sock was the defending champion, but lost in the second round to Peter Gojowczyk.
Andy Murray was the defending champion, but could not participate this year as he was recovering from hip surgery.
Yūichi Sugita was the defending champion but lost in the second round to Pierre-Hugues Herbert.
Blaž Kavčič was the defending champion but chose not to defend his title.
Blaž Kavčič was the defending champion but chose not to defend his title.