| Singles | |
|---|---|
| 2018 Poznań Open | |
| Champion |  Hubert Hurkacz |
| Runner-up |  Taro Daniel |
| Score | 6–1, 6–1 |
Alexey Vatutin was the defending champion but lost in the quarterfinals to Hubert Hurkacz.
Hurkacz won the title after defeating Taro Daniel 6–1, 6–1 in the final.
Taro Daniel (final)
Guido Andreozzi (first round)
Martin Kližan (second round)
Pedro Sousa (first round)
Marcel Granollers (second round)
Quentin Halys (semifinals)
Henri Laaksonen (second round)
Alexey Vatutin (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Taro Daniel | 78 | 6 | ||||||||||
| 6 | Quentin Halys | 66 | 3 | ||||||||||
| 1 | Taro Daniel | 1 | 1 | ||||||||||
| Hubert Hurkacz | 6 | 6 | |||||||||||
 Alessandro Giannessi | 4 | 6 | 3 | ||||||||||
| Hubert Hurkacz | 6 | 3 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | T Daniel | 7 | 6 | ||||||||||||||||||||||||
 M Kecmanović | 5 | 3 | 1 | T Daniel | 6 | 6 | |||||||||||||||||||||
| Alt |  T Brkić | 1 | 4 | Q | M Bourgue | 4 | 2 | ||||||||||||||||||||
| Q | M Bourgue | 6 | 6 | 1 | T Daniel | 6 | 7 | ||||||||||||||||||||
| F Bagnis | 6 | 7 | F Bagnis | 4 | 5 | ||||||||||||||||||||||
| J Kovalík | 3 | 5 | F Bagnis | 6 | 77 | ||||||||||||||||||||||
 R Quiroz | 2 | 7 | 3 | 5/WC | M Granollers | 1 | 64 | ||||||||||||||||||||
| 5/WC | M Granollers | 6 | 5 | 6 | 1 | T Daniel | 78 | 6 | |||||||||||||||||||
| 3 | M Kližan | 6 | 6 | 6 | Q Halys | 66 | 3 | ||||||||||||||||||||
| Alt |  M Krueger | 2 | 2 | 3 | M Kližan | 3 | 3 | ||||||||||||||||||||
 O Otte | 2 | 6 | 3 | Q | A Arnaboldi | 6 | 6 | ||||||||||||||||||||
| Q | A Arnaboldi | 6 | 3 | 6 | Q | A Arnaboldi | 1 | 63 | |||||||||||||||||||
| Q | A Escoffier | 6 | 6 | 6 | Q Halys | 6 | 77 | ||||||||||||||||||||
 A Santillan | 4 | 3 | Q | A Escoffier | 63 | 7 | 4 | ||||||||||||||||||||
| WC |  VV Cornea | 1 | 4 | 6 | Q Halys | 77 | 5 | 6 | |||||||||||||||||||
| 6 | Q Halys | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | H Laaksonen | 6 | 6 | ||||||||||||||||||||||||
| J Kubler | 4 | 2 | 7 | H Laaksonen | 0 | 1 | |||||||||||||||||||||
 D Novak | 3 | 2 |  A Balázs | 6 | 6 | ||||||||||||||||||||||
| A Balázs | 6 | 6 | A Balázs | 4 | 5 | ||||||||||||||||||||||
| WC | Paweł Ciaś | 3 | 6 | 4 | A Giannessi | 6 | 7 | ||||||||||||||||||||
 V Estrella Burgos | 6 | 1 | 6 | V Estrella Burgos | 6 | 3 | 3 | ||||||||||||||||||||
| A Giannessi | 6 | 6 | A Giannessi | 4 | 6 | 6 | |||||||||||||||||||||
| 4 | P Sousa | 2 | 3 | A Giannessi | 4 | 6 | 3 | ||||||||||||||||||||
| 8 | A Vatutin | 6 | 6 | H Hurkacz | 6 | 3 | 6 | ||||||||||||||||||||
| K de Schepper | 2 | 4 | 8 | A Vatutin | 77 | 4 | 6 | ||||||||||||||||||||
| Q | Jeremy Jahn | 6 | 2 | 6 | Q | J Jahn | 64 | 6 | 3 | ||||||||||||||||||
| K Majchrzak | 3 | 6 | 0 | 8 | A Vatutin | 3 | 2 | ||||||||||||||||||||
| WC | Michał Dembek | 64 | 3 | H Hurkacz | 6 | 6 | |||||||||||||||||||||
| M Donati | 77 | 6 | M Donati | 3 | 77 | 3 | |||||||||||||||||||||
| H Hurkacz | 6 | 7 | H Hurkacz | 6 | 65 | 6 | |||||||||||||||||||||
| 2 | G Andreozzi | 1 | 5 | ||||||||||||||||||||||||
This was the first edition of the tournament.
Alexander Zverev was the defending champion, but chose not to participate this year.
Evgeny Donskoy was the defending champion but chose not to defend his title.
Two-time defending champion Rafael Nadal defeated Stefanos Tsitsipas in the final, 6–2, 6–1 to win the singles tennis title at the 2018 Barcelona Open. With the win, Nadal retained the ATP no. 1 singles ranking. It was Nadal's record-extending eleventh Barcelona Open title and his 20th ATP 500 title overall, equaling Roger Federer's record. It was Tsitsipas' maiden ATP Tour final.
Marin Čilić was the defending champion, but lost in the second round to Malek Jaziri.
Alexander Zverev was the defending champion and successfully defended his title, defeating Philipp Kohlschreiber in the final, 6–3, 6–3.
Andrey Rublev was the defending champion, but lost in the quarterfinals to Robin Haase. This was Rublev's first tournament back on tour after missing three months due to a stress fracture in his back.
Damir Džumhur was the defending champion, but lost in the quarterfinals to Stan Wawrinka.
Novak Djokovic defeated Borna Ćorić in the final, 6–3, 6–4 to win the singles tennis title at the 2018 Shanghai Masters. It was his record fourth Shanghai Masters title, and 32nd Masters 1000 title overall. He did not lose a single set in the entire tournament.
Guillermo García López was the defending champion but chose not to defend his title.
Damir Džumhur was the defending champion, but lost to Egor Gerasimov in the first round.
Novak Djokovic defeated Stefanos Tsitsipas in the final, 6–3, 6–4 to win the men's singles tennis title at the 2019 Madrid Open. With the win, Djokovic tied Rafael Nadal's record of 33 Masters 1000 singles titles. He did not lose a single set in the entire tournament.
Guido Andreozzi was the defending champion but lost to Jozef Kovalík in the final.
Dominic Thiem was the defending champion, but chose to compete in the Laver Cup instead.
Tommy Paul was the defending champion but chose not to defend his title.
Reilly Opelka was the defending champion but chose not to defend his title.
Hubert Hurkacz was the defending champion, but chose not to defend his title.
Andrey Rublev defeated Jiří Veselý in the final, 6–3, 6–4 to win the men's singles title at the 2022 Dubai Tennis Championships. It was Rublev's tenth career singles title. Veselý entered the tournament ranked as the world No. 123, and was the lowest-ranked finalist in the tournament's history.
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.
Andrey Rublev defeated Sebastian Korda in the final, 6–2, 6–3 to win the singles tennis title at the 2022 Gijón Open. It was his 12th ATP Tour singles title.