| Men's singles | |
|---|---|
| 2023 Calgary National Bank Challenger | |
| Champion |  Liam Draxl |
| Runner-up |  Dominik Koepfer |
| Score | 6–4, 6–3 |
Dominik Koepfer was the defending champion [1] but lost in the final to Liam Draxl.
Draxl won the title after defeating Koepfer 6–4, 6–3 in the final.
Dominik Koepfer (final)
James Duckworth (second round)
Benoît Paire (first round) Gabriel Diallo (semifinals, withdrew)
Ryan Peniston (first round)
Zizou Bergs (quarterfinals) Kimmer Coppejans (first round)
Aziz Dougaz (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Dominik Koepfer | w/o | |||||||||||
| 4 | Gabriel Diallo | ||||||||||||
| 1 | Dominik Koepfer | 4 | 3 | ||||||||||
| WC | Liam Draxl | 6 | 6 | ||||||||||
 Andres Martin | 65 | 7 | 3 | ||||||||||
| WC | Liam Draxl | 77 | 5 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | D Koepfer | 6 | 6 | ||||||||||||||||||||||||
| Charles Broom | 2 | 3 | 1 | D Koepfer | 6 | 6 | |||||||||||||||||||||
| C Chidekh | 6 | 6 | C Chidekh | 3 | 3 | ||||||||||||||||||||||
 M Vrbenský | 4 | 2 | 1 | D Koepfer | 6 | 6 | |||||||||||||||||||||
| Q |  K Pannu | 6 | 6 | 6 | Z Bergs | 1 | 3 | ||||||||||||||||||||
 D Jordà Sanchis | 1 | 4 | Q | K Pannu | 4 | 5 | |||||||||||||||||||||
 B Lock | 77 | 3 | 3 | 6 | Z Bergs | 6 | 7 | ||||||||||||||||||||
| 6 | Z Bergs | 63 | 6 | 6 | 1 | D Koepfer | w/o | ||||||||||||||||||||
| 4 | G Diallo | 4 | 710 | 6 | 4 | G Diallo | |||||||||||||||||||||
| A Paulson | 6 | 68 | 4 | 4 | G Diallo | 5 | 7 | 6 | |||||||||||||||||||
| Q | Patrick Brady | 7 | 4 | 2 |  J Sousa | 7 | 5 | 3 | |||||||||||||||||||
| J Sousa | 5 | 6 | 6 | 4 | G Diallo | 6 | 6 | ||||||||||||||||||||
| Q | JC Aguilar | 3 | 6 | 3 | 8 | A Dougaz | 3 | 2 | |||||||||||||||||||
| S Diez | 6 | 1 | 6 | S Diez | 3 | 2 | |||||||||||||||||||||
| WC | Dan Martin | 2 | 5 | 8 | A Dougaz | 6 | 6 | ||||||||||||||||||||
| 8 | A Dougaz | 6 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | R Peniston | 3 | 4 | ||||||||||||||||||||||||
| A Martin | 6 | 6 | A Martin | 7 | 6 | ||||||||||||||||||||||
| T Samuel | 78 | 710 | T Samuel | 5 | 4 | ||||||||||||||||||||||
| Q | R Seggerman | 66 | 68 | A Martin | 6 | 6 | |||||||||||||||||||||
| Q | Enzo Wallart | 1 | 7 | 6 | Q | E Wallart | 1 | 1 | |||||||||||||||||||
 V Durasovic | 6 | 5 | 3 | Q | E Wallart | 711 | 77 | ||||||||||||||||||||
 M Kaśnikowski | 6 | 63 | 6 | M Kaśnikowski | 69 | 64 | |||||||||||||||||||||
| 3 | B Paire | 3 | 77 | 3 | A Martin | 65 | 7 | 3 | |||||||||||||||||||
| 7 | K Coppejans | 4 | 1 | WC | L Draxl | 77 | 5 | 6 | |||||||||||||||||||
| WC | L Draxl | 6 | 6 | WC | L Draxl | 6 | 6 | ||||||||||||||||||||
| L Saville | 79 | 4 | 6 | L Saville | 1 | 2 | |||||||||||||||||||||
| T Schoolkate | 67 | 6 | 3 | WC | L Draxl | 7 | 5 | 6 | |||||||||||||||||||
| Q | I Montes de la Torre | 6 | 6 | Q | I Montes de la Torre | 5 | 7 | 1 | |||||||||||||||||||
| WC | J Boulais | 4 | 1 | Q | I Montes de la Torre | 6 | 6 | ||||||||||||||||||||
| L Tu | 2 | 4 | 2 | J Duckworth | 3 | 2 | |||||||||||||||||||||
| 2 | J Duckworth | 6 | 6 | ||||||||||||||||||||||||
This was the first edition of the tournament.
Nikoloz Basilashvili was the defending champion, but lost in the second round to Stefanos Tsitsipas.
Dominic Thiem was the defending champion and chose not to defend his title, as he was still competing at the 2020 US Open.
First seed Alexander Zverev won the tournament, defeating third seed Félix Auger-Aliassime 6–3, 6–3 in the final. This was the first edition of the tournament, primarily organised due to the cancellation of many tournaments in 2020, due to the COVID-19 pandemic.
Cristian Garín was the defending champion, but chose not to defend his title.
Łukasz Kubot and Marcelo Melo were the defending champions, but they decided to participate in Dubai instead.
Stefanos Tsitsipas defeated Andrey Rublev in the final, 6–3, 6–3 to win the singles tennis title at the 2021 Monte-Carlo Masters. It was his first ATP Tour Masters 1000 title, making him the first Greek to win a Masters tournament. Rublev was also in contention for his maiden Masters 1000 title.
Alexander Zverev defeated Andrey Rublev in the final, 6–2, 6–3 to win the men's singles tennis title at the 2021 Cincinnati Masters. It was his fifth Masters 1000 title and 17th career singles title on the ATP Tour.
This was the first edition of the tournament, which was primarily organized to compensate for the cancellation of Asian tournaments in 2021 due to the COVID-19 pandemic.
Andrey Rublev was the defending champion, but chose to compete in St. Petersburg instead.
Łukasz Kubot and Marcelo Melo were the defending champions, but Kubot chose not to participate. Melo played alongside Ivan Dodig, but lost in the first round to Feliciano López and Stefanos Tsitsipas.
Novak Djokovic defeated the defending champion Daniil Medvedev in the final, 4–6, 6–3, 6–3 to win the singles tennis title at the 2021 Paris Masters. It was his record-extending sixth Paris Masters title and record-breaking 37th ATP Tour Masters 1000 title overall, surpassing Rafael Nadal's tally in the latter category.
Dominik Koepfer was the defending champion but chose not to defend his title.
Alex de Minaur defeated Jenson Brooksby in the final, 6–3, 6–3 to win the singles title at the 2022 Atlanta Open. It was de Minaur's second Atlanta title, the first being in 2019.
Nick Kyrgios defeated Yoshihito Nishioka in the final, 6–4, 6–3 to win the men's singles tennis title at the 2022 Washington Open. It was his second Washington title, following 2019. Kyrgios saved five match points en route to the title, in the quarterfinals against Frances Tiafoe. He also did not drop serve during the tournament.
Mitchell Krueger was the defending champion but lost in the first round to Keegan Smith.
Yoshihito Nishioka was the defending champion but chose not to defend his title.
Arthur Rinderknech was the defending champion but chose not to defend his title.
Sebastian Ofner was the defending champion but chose not to defend his title.
Márton Fucsovics was the defending champion but chose to compete at the Brisbane International instead.