Defending champion Ben Shelton defeated Brandon Nakashima in the final, 6–3, 7–6(7–4) to win the men's singles tennis title at the 2026 Canadian Open. He did not lose a set en route to his second Masters 1000 title and seventh ATP Tour title overall. Shelton was the first player to successfully defend the men's singles title since Rafael Nadal in 2019.
The fourth-round loss of Cameron Norrie guaranteed a first-time Masters 1000 finalist from the bottom half of the draw. Nakashima emerged to become that player.
This marked the first ATP Tour tournament in which all eight quarterfinalists were born in the 2000s, and the first Masters event since the 2007 Paris Masters in which all eight quarterfinalists were aged 25 or under. It also marked the first all-American Masters 1000 final since the 2003 Cincinnati Open.
Seeds All seeds received a bye into the second round.
Draw
Finals
Top half Section 1
Section 2
Section 3
Section 4
Bottom half Section 5
Section 6
Section 7
Section 8
Seeded players The following are the seeded players. Seedings are based on ATP rankings as of 27 July 2026. Rankings and points before are as of 3 August 2026.
Because the tournament takes place one week later this year, points from the 2025 tournament held in Toronto were already dropped from rankings on 3 August 2026. Accordingly, the points defending column reflects the player's 18th best result as of 3 August 2026 (in parentheses) instead. This method of calculating ranking points for the tournament is different from the WTA's method.
SeedRankPlayerPoints beforePoints defendingPoints earned Points afterStatus 1 3 Alexander Zverev 8,120 (40) 10 8,090 Second round lost to Tallon Griekspoor 2 4 Félix Auger-Aliassime 4,740 (50) 0 4,690 Withdrew due to back injury 3 7 Alex de Minaur 3,560 (50) 50 3,560 Third round lost to Cameron Norrie 4 6 Daniil Medvedev 3,620 (50) 10 3,580 5 10 Ben Shelton‡ 2,680 (10) 1,000 3,670 Champion, defeated Brandon Nakashima 6 9 Flavio Cobolli 3,330 (10) 10 3,330 Second round lost to Yannick Hanfmann 7 8 Taylor Fritz 3,400 (35) 10 3,375 8 12 Jiří Lehečka 2,380 (10) 100 2,470 Fourth round lost to Rafael Jódar 9 14 Casper Ruud 2,345 (10) 50 2,385 Third round lost to João Fonseca 10 16 Andrey Rublev 2,230 (10) 10 2,230 11 13 Lorenzo Musetti 2,375 (10) 50 2,415 Third round lost to Rafael Jódar 12 19 Learner Tien 2,155 (10) 400 2,545 Semifinals lost to Ben Shelton 13 17 Jakub Menšík 2,205 (10) 200 2,395 Quarterfinals lost to Ben Shelton 14 18 Valentin Vacherot 2,176 (0) 10 2,186 Second round lost to Mariano Navone 15 20 Frances Tiafoe 2,105 (25) 50 2,130 16 23 Francisco Cerúndolo 2,010 (50) 10 1,970 Second round lost to Alex Michelsen 17 21 Tommy Paul 2,075 (50) 50 2,075 Third round vs. Learner Tien 18 24 Arthur Fils 1,940 (0) 200 2,140 Quarterfinals lost to Rafael Jódar 19 22 Luciano Darderi 2,025 (50) 200 2,175 Quarterfinals lost to Brandon Nakashima 20 15 Rafael Jódar 2,243 (22) 400 2,621 Semifinals lost to Brandon Nakashima 21 39 Karen Khachanov 1,130 (0) 10 1,140 Second round lost to Térence Atmane 22 27 João Fonseca 1,700 (0) 100 1,800 Fourth round lost to Ben Shelton 23 28 Arthur Rinderknech 1,623 (0) 100 1,723 Fourth round lost to Brandon Nakashima 24 29 Ugo Humbert 1,625 (50) 10 1,585 Second round lost to Daniel Mérida 25 26 Alejandro Tabilo 1,728 (50) 10 1,688 Second round lost to Hubert Hurkacz [PR] 26 30 1,510 (50) 10 1,470 Second round lost to Nuno Borges 27 32 Alexander Blockx 1,353 (7) 50 1,396 Third round lost to Jiří Lehečka 28 31 Brandon Nakashima† 1,510 (25) 650 2,135 Runner-up, lost to Ben Shelton 29 33 Ignacio Buse 1,350 (25) 10 1,335 Second round lost to Cameron Norrie 30 35 Matteo Arnaldi 1,299 (0) 50 1,349 Third round lost to Tallon Griekspoor 31 34 Zizou Bergs 1,340 (25) 50 1,365 Third round lost to Ben Shelton 32 38 Raphaël Collignon 1,234 (22) 10 1,222 Second round lost to Alexei Popyrin [Q]
Withdrawn seeded players The following players would have been seeded, but withdrew before the tournament began. RankPlayerPoints beforePoints dropping (18th best)Points after Withdrawal reason 1 Jannik Sinner 13,450 (0) 13,450 Schedule change 2 Carlos Alcaraz 8,160 (0) 8,160 Right wrist injury 5 Novak Djokovic 3,760 (0) 3,760 Schedule change 11 Alexander Bublik 2,535 (10) 2,525 Schedule change 25 1,830 (50) 1,780 Fatigue
Other entry information Wildcards
Protected ranking
Withdrawals
§ – not included on entry list ‡ – withdrew from entry list † – withdrew from main draw
Qualifying Seeds
Qualifiers
Lucky loser
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
Eighth qualifier
Ninth qualifier
Tenth qualifier
Eleventh qualifier
Twelfth qualifier
Thirteenth qualifier
Fourteenth qualifier
Fifteenth qualifier
Sixteenth qualifier
References
External links Main draw Qualifying draw