# 2023 National Bank Open – Men's singles

Jannik Sinner defeated Alex de Minaur in the final, 6–4, 6–1 to win the men's singles title at the 2023 Canadian Open. It was his first ATP Tour Masters 1000 title and eighth ATP Tour singles title overall.
Pablo Carreño Busta was the reigning champion, but withdrew before the tournament began due to injury.

## Seeds

The top eight seeds received a bye into the second round.
    01. Carlos Alcaraz (quarterfinals)
    02. Daniil Medvedev (quarterfinals)
    03. Casper Ruud (third round)
    04. Stefanos Tsitsipas (second round)
    05. Holger Rune (second round)
    06. Andrey Rublev (second round)
    07. Jannik Sinner (champion)
    08. Taylor Fritz (third round)
    09. Frances Tiafoe (first round)
    10. Félix Auger-Aliassime (first round)
    11. Cameron Norrie (first round)
    12. Tommy Paul (semifinals)
    13. Alexander Zverev (second round)
    14. Borna Ćorić (first round)
    15. Hubert Hurkacz (third round)
    16. Lorenzo Musetti (third round)
Click on the seed number of a player to go to their draw section.

## 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Carlos Alcaraz | 3 | 6 | 3 | | | | | | | | |
| 12 | Tommy Paul | 6 | 4 | 6 | | | | | | | | |
| 12 | Tommy Paul | 6 | 4 | 6 | 12 | Tommy Paul | 4 | 4 | | | | |
| | | | | | 7 | Jannik Sinner | 6 | 6 | | | | |
| PR | Gaël Monfils | 4 | 6 | 3 | 7 | Jannik Sinner | 6 | 6 | | | | |
| 7 | Jannik Sinner | 6 | 4 | 6 | | | | | | | | |
| 7 | Jannik Sinner | 6 | 4 | 6 | | | | | 7 | Jannik Sinner | 6 | 6 |
| | | | | | | | | | | Alex de Minaur | 4 | 1 |
| | Mackenzie McDonald | 4 | 2 | | | | | | | | | | Alex de Minaur | 4 | 1 |
| | Alejandro Davidovich Fokina | 6 | 6 | | | | | | | | | |
| | Alejandro Davidovich Fokina | 6 | 6 | | | Alejandro Davidovich Fokina | 1 | 3 | | | | |
| | | | | | | Alex de Minaur | 6 | 6 | | | | |
| | Alex de Minaur | 7$^9$ | 7 | | | Alex de Minaur | 6 | 6 | | | | |
| 2 | Daniil Medvedev | 6$^7$ | 5 | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | C Alcaraz | 6 | 7$^7$ | | | | | | | | | | | |
| | B Shelton | 7$^7$ | 6 | | | B Shelton | 3 | 6$^3$ | | | | | | | | | | | |
| | B Zapata Miralles | 6$^1$ | 4 | | | | | | | 1 | C Alcaraz | 3 | 7$^7$ | 7$^7$ | | | | | |
| Q | C Garín | 6$^2$ | 6 | 4 | | | | | | 15 | H Hurkacz | 6 | 6$^2$ | 6$^3$ | | | | | |
| | M Kecmanović | 7$^7$ | 4 | 6 | | M Kecmanović | 7 | 3 | 0 | | | | | | | | | | |
| | A Bublik | 3 | 6$^2$ | | 15 | H Hurkacz | 5 | 6 | 6 | | | | | | | | | | |
| 15 | H Hurkacz | 6 | 7$^7$ | | | | | | | | | | | | 1 | C Alcaraz | 3 | 6 | 3 |
| 12 | T Paul | 6 | 3 | 6 | | | | | | | | | | | 12 | T Paul | 6 | 4 | 6 |
| Q | D Schwartzman | 3 | 6 | 4 | 12 | T Paul | 7$^7$ | 6$^2$ | 6 | | | | | | | | | | |
| WC | A Galarneau | 2 | 6 | 4 | | F Cerúndolo | 6$^2$ | 7$^7$ | 3 | | | | | | | | | | |
| | F Cerúndolo | 6 | 4 | 6 | | | | | | 12 | T Paul | 6 | 6 | | | | | | |
| | E Ruusuvuori | 6$^4$ | 6$^6$ | | | | | | | Q | M Giron | 3 | 2 | | | | | | |
| Q | M Giron | 7$^7$ | 7$^8$ | | Q | M Giron | 6 | 4 | 6 | | | | | | | | | | |
| | | | | | 5 | H Rune | 2 | 6 | 3 | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | S Tsitsipas | 4 | 3 | | | | | | | | | | |
| PR | G Monfils | 7$^7$ | 6$^4$ | 6 | PR | G Monfils | 6 | 6 | | | | | | | | | | |
| | C Eubanks | 6$^3$ | 7$^7$ | 1 | | | | | | PR | G Monfils | 6 | 6 | | | | | |
| | TM Etcheverry | 3 | 2 | | | | | | | LL | A Vukic | 4 | 4 | | | | | |
| | S Korda | 6 | 6 | | | S Korda | 3 | 6 | 6$^5$ | | | | | | | | | |
| LL | A Vukic | 6 | 6 | | LL | A Vukic | 6 | 4 | 7$^7$ | | | | | | | | | |
| 14 | B Ćorić | 2 | 3 | | | | | | | | | | | PR | G Monfils | 4 | 6 | 3 |
| 10 | F Auger-Aliassime | 4 | 4 | | | | | | | | | | | 7 | J Sinner | 6 | 4 | 6 |
| Q | M Purcell | 6 | 6 | | Q | M Purcell | 6$^2$ | 6 | 5 | | | | | | | | | |
| | L Sonego | 6$^3$ | 0 | | | A Murray | 7$^7$ | 3 | 7 | | | | | | | | | |
| | A Murray | 7$^7$ | 6 | | | | | | | | A Murray | | | | | | | |
| | G Barrère | 4 | 3 | | | | | | | 7 | J Sinner | w/o | | | | | | |
| | M Berrettini | 6 | 6 | | | M Berrettini | 4 | 3 | | | | | | | | | | |
| | | | | | 7 | J Sinner | 6 | 6 | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | A Rublev | 4 | 3 | | | | | | | | |
| | M McDonald | 6 | 6 | | | M McDonald | 6 | 6 | | | | | | | | |
| | A Karatsev | 3 | 4 | | | | | | | M McDonald | 6 | 6 | | | | |
| | A Mannarino | 6$^5$ | 4 | | | | | | WC | M Raonic | 3 | 3 | | | | |
| Q | T Daniel | 7$^7$ | 6 | | Q | T Daniel | 4 | 3 | | | | | | | | |
| WC | M Raonic | 6$^{12}$ | 7$^7$ | 6 | WC | M Raonic | 6 | 6 | | | | | | | | |
| 9 | F Tiafoe | 7$^{14}$ | 6$^4$ | 3 | | | | | | | | | | M McDonald | 4 | 2 |
| 13 | A Zverev | 6 | 7$^7$ | | | | | | | | | | | A Davidovich Fokina | 6 | 6 |
| | T Griekspoor | 4 | 6$^3$ | | 13 | A Zverev | 1 | 2 | | | | | | | | |
| | A Davidovich Fokina | 6 | 6 | | | A Davidovich Fokina | 6 | 6 | | | | | | | | |
| | JJ Wolf | 0 | 2 | | | | | | | A Davidovich Fokina | 7$^7$ | 4 | 7$^7$ | | | |
| | B Nakashima | 5 | 6 | 6$^2$ | | | | | 3 | C Ruud | 6$^4$ | 6 | 6$^4$ | | | |
| | J Lehečka | 7 | 3 | 7$^7$ | | J Lehečka | 6$^6$ | 4 | | | | | | | | |
| | | | | | 3 | C Ruud | 7$^8$ | 6 | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 8 | T Fritz | 7$^9$ | 3 | 6 | | | | | | | | | |
| | U Humbert | 4 | 6 | 6 | | U Humbert | 6$^7$ | 6 | 3 | | | | | | | | | |
| | N Jarry | 6 | 3 | 4 | | | | | | 8 | T Fritz | 6$^7$ | 6 | 1 | | | | |
| WC | G Diallo | 7$^7$ | 7 | | | | | | | | A de Minaur | 7$^9$ | 4 | 6 | | | | |
| | D Evans | 6$^4$ | 5 | | WC | G Diallo | 4 | 5 | | | | | | | | | | |
| | A de Minaur | 7 | 6 | | | A de Minaur | 6 | 7 | | | | | | | | | | |
| 11 | C Norrie | 5 | 4 | | | | | | | | | | | | | A de Minaur | 7$^9$ | 7 |
| 16 | L Musetti | 6 | 6 | | | | | | | | | | | | 2 | D Medvedev | 6$^7$ | 5 |
| | Y Nishioka | 4 | 1 | | 16 | L Musetti | 4 | 7 | 6 | | | | | | | | | |
| | Z Zhang | 5 | 4 | | Q | T Kokkinakis | 6 | 5 | 4 | | | | | | | | | |
| Q | T Kokkinakis | 7 | 6 | | | | | | | 16 | L Musetti | 4 | 4 | | | | | |
| WC | V Pospisil | 4 | 4 | | | | | | | 2 | D Medvedev | 6 | 6 | | | | | |
| Q | M Arnaldi | 6 | 6 | | Q | M Arnaldi | 2 | 5 | | | | | | | | | | |
| | | | | | 2 | D Medvedev | 6 | 7 | | | | | | | | | | |

## Seeded players

The following are the seeded players. Seedings are based on ATP rankings as of 31 July 2023. Rank and points before are as of 7 August 2023.
| Seed | Rank | Player | Points before | Points defending | Points won | Points after | Status |
| 1 | 1 | Carlos Alcaraz | 9,225 | 10 | 180 | 9,395 | Quarterfinals lost to Tommy Paul [12] |
| 2 | 3 | Daniil Medvedev | 6,360 | 10 | 180 | 6,530 | Quarterfinals lost to Alex de Minaur |
| 3 | 5 | Casper Ruud | 4,985 | 360 | 90 | 4,715 | Third round lost to Alejandro Davidovich Fokina |
| 4 | 4 | Stefanos Tsitsipas | 5,090 | 10 | 10 | 5,090 | Second round lost to Gaël Monfils [PR] |
| 5 | 6 | Holger Rune | 4,825 | 45 | 10 | 4,790 | Second round lost to Marcos Giron [Q] |
| 6 | 7 | Andrey Rublev | 4,595 | 10 | 10 | 4,595 | Second round lost to Mackenzie McDonald |
| 7 | 8 | Jannik Sinner | 3,815 | 90 | 1,000 | 4,725 | Champion, defeated Alex de Minaur |
| 8 | 9 | Taylor Fritz | 3,605 | 90 | 90 | 3,605 | Third round lost to Alex de Minaur |
| 9 | 10 | Frances Tiafoe | 3,085 | 45 | 10 | 3,050 | First round lost to Milos Raonic [WC] |
| 10 | 12 | Félix Auger-Aliassime | 2,680 | 180 | 10 | 2,510 | First round lost to Max Purcell [Q] |
| 11 | 13 | Cameron Norrie | 2,505 | 90 | 10 | 2,425 | First round lost to Alex de Minaur |
| 12 | 14 | Tommy Paul | 2,345 | 180 | 360 | 2,525 | Semifinals lost to Jannik Sinner [7] |
| 13 | 16 | Alexander Zverev | 2,265 | 0 | 45 | 2,310 | Second round lost to Alejandro Davidovich Fokina |
| 14 | 15 | Borna Ćorić | 2,315 | 10 | 10 | 2,315 | First round lost to Aleksandar Vukic [LL] |
| 15 | 17 | Hubert Hurkacz | 2,195 | 600 | 90 | 1,685 | Third round lost to Carlos Alcaraz [1] |
| 16 | 19 | Lorenzo Musetti | 1,950 | (45)$^†$ | 90 | 1,995 | Third round lost to Daniil Medvedev [2] |
† The player did not qualify for the event in 2022. Points from his 19th best result will be deducted instead.

### Withdrawn players

The following players would have been seeded, but withdrew before the tournament began.
| Rank | Player | Points before | Points defending | Points after | Withdrawal reason |
| 2 | Novak Djokovic | 8,795 | 0 | 8,795 | Fatigue |
| 11 | Karen Khachanov | 2,900 | 45 | 2,855 | Injury |

## Other entry information
### Wild cards

* Gabriel Diallo
* Alexis Galarneau
* Vasek Pospisil
* Milos Raonic

### Protected ranking

* Gaël Monfils

### Withdrawals

* Roberto Bautista Agut → replaced by Grégoire Barrère
* Pablo Carreño Busta → replaced by J. J. Wolf
* Marin Čilić → replaced by Zhang Zhizhen
* Grigor Dimitrov → replaced by Aleksandar Vukic
* Novak Djokovic → replaced by Christopher Eubanks
* Karen Khachanov → replaced by Aslan Karatsev
* Nick Kyrgios → replaced by Emil Ruusuvuori
* Denis Shapovalov → replaced by Mackenzie McDonald
* Jan-Lennard Struff → replaced by Bernabé Zapata Miralles

## Qualifying
### Seeds

* Aleksandar Vukic (qualifying competition, lucky loser)
* Matteo Arnaldi (qualified)
* Marcos Giron (qualified)
* Christopher O'Connell (qualifying competition)
* Max Purcell (qualified)
* Corentin Moutet (qualifying competition)
* Thanasi Kokkinakis (qualified)
* Diego Schwartzman (qualified)
* Maxime Cressy (first round)
* Radu Albot (qualifying competition)
* Yosuke Watanuki (withdrew)
* Cristian Garín (qualified)
* Constant Lestienne (qualifying competition)
* Taro Daniel (qualified)

### Qualifiers

* Diego Schwartzman
* Matteo Arnaldi
* Marcos Giron
* Cristian Garín
* Max Purcell
* Taro Daniel
* Thanasi Kokkinakis

### Lucky loser

* Aleksandar Vukic

### Draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Aleksandar Vukic | 6 | 6 | | | | |
| WC | Dan Martin | 3 | 4 | | | | |
| WC | Dan Martin | 3 | 4 | 1 | Aleksandar Vukic | 4 | 4 |
| | | | | 8 | Diego Schwartzman | 6 | 6 |
| WC | Liam Draxl | 6$^6$ | 4 | 8 | Diego Schwartzman | 6 | 6 |
| 8 | Diego Schwartzman | 7$^8$ | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Matteo Arnaldi | 6 | 6 | | | | |
| | Aleksandar Kovacevic | 4 | 4 | | | | |
| | Aleksandar Kovacevic | 4 | 4 | 2 | Matteo Arnaldi | 6 | 6 |
| | | | | Alt | Matija Pecotić | 4 | 4 |
| | Ilya Ivashka | 2 | 6$^3$ | Alt | Matija Pecotić | 4 | 4 |
| Alt | Matija Pecotić | 6 | 7$^7$ | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Marcos Giron | 6 | 3 | 6 | | | | |
| | Nick Chappell | 4 | 6 | 2 | | | | |
| | Nick Chappell | 4 | 6 | 2 | 3 | Marcos Giron | 6 | 6 |
| | | | | | 10 | Radu Albot | 3 | 1 |
| Alt | Mukund Sasikumar | 2 | 5 | | 10 | Radu Albot | 3 | 1 |
| 10 | Radu Albot | 6 | 7 | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Christopher O'Connell | 6 | 2 | 6 | | | | |
| PR | Thai-Son Kwiatkowski | 2 | 6 | 4 | | | | |
| PR | Thai-Son Kwiatkowski | 2 | 6 | 4 | 4 | Christopher O'Connell | 6$^6$ | 4 |
| | | | | | 12 | Cristian Garín | 7$^8$ | 6 |
| | Maxime Janvier | 3 | 3 | | 12 | Cristian Garín | 7$^8$ | 6 |
| 12 | Cristian Garín | 6 | 6 | | | | | |

#### Fifth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 5 | Max Purcell | 6 | 6 | | | | | |
| PR | Peter Polansky | 2 | 4 | | | | | |
| PR | Peter Polansky | 2 | 4 | | 5 | Max Purcell | 6 | 6 |
| | | | | | WC | Brayden Schnur | 2 | 1 |
| WC | Brayden Schnur | 4 | 7$^7$ | 7 | WC | Brayden Schnur | 2 | 1 |
| 9 | Maxime Cressy | 6 | 6$^2$ | 5 | | | | |

#### Sixth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 6 | Corentin Moutet | 6 | 6 | | | | |
| WC | Justin Boulais | 0 | 3 | | | | |
| WC | Justin Boulais | 0 | 3 | 6 | Corentin Moutet | 6$^8$ | 2 |
| | | | | 14 | Taro Daniel | 7$^{10}$ | 6 |
| | Dane Sweeny | 6$^4$ | 5 | 14 | Taro Daniel | 7$^{10}$ | 6 |
| 14 | Taro Daniel | 7$^7$ | 7 | | | | |

#### Seventh qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 7 | Thanasi Kokkinakis | 7$^7$ | 4 | 7 | | | | |
| | Borna Gojo | 6$^4$ | 6 | 5 | | | | |
| | Borna Gojo | 6$^4$ | 6 | 5 | 7 | Thanasi Kokkinakis | 7$^8$ | 6 |
| | | | | | 13 | Constant Lestienne | 6$^6$ | 3 |
| | James Duckworth | 1 | 6 | 4 | 13 | Constant Lestienne | 6$^6$ | 3 |
| 13 | Constant Lestienne | 6 | 2 | 6 | | | | |