Alexander Zverev was the defending champion, but chose not to participate this year.
Tomáš Berdych was the two-time defending champion, but withdrew before the competition began.
Juan Martín del Potro defeated the defending champion Roger Federer in the final, 6–4, 6–7(8–10), 7–6(7–2) to win the men's singles tennis title at the 2018 Indian Wells Masters. He saved three championship points en route to his maiden ATP Tour Masters 1000 title, following three previous runner-up finishes.
Yūichi Sugita was the defending champion but lost in the second round to Pierre-Hugues Herbert.
The 2020 French Open – Men's Singles Qualifying was a series of tennis matches which took place 21–25 September 2020 to determine the sixteen qualifiers into the main draw of the 2020 French Open. Three players also qualified as lucky losers.
First seed Alexander Zverev won the tournament, defeating second seed Diego Schwartzman 6–2, 6–1 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.
Daniil Medvedev defeated Alexander Zverev in the final, 5–7, 6–4, 6–1 to win the singles tennis title at the 2020 Paris Masters.
This article displays the qualifying draw for men's singles at the 2021 Australian Open.
The 2021 French Open – Men's Singles Qualifying is a series of tennis matches that takes place from 24 May to 28 May 2021 to determine the sixteen qualifiers into the main draw of the 2021 French Open – Men's singles, and, if necessary, the lucky losers.
The 2021 US Open – Men's Singles Qualifying was a series of tennis matches from 24 August 2021 to 27 August 2021 where 128 players compete to determine the 16 qualifiers into the main draw of the 2021 US Open men's singles tournament, and, if necessary, the lucky losers. Due to pandemic-related restrictions, the qualifying matches were not open to the public.
Rafael Nadal defeated Daniil Medvedev in the final, 2–6, 6–7(5–7), 6–4, 6–4, 7–5 to win the men's singles tennis title at the 2022 Australian Open. It was his second Australian Open title and 21st major singles title overall, surpassing the all-time record he had jointly held with Roger Federer and Novak Djokovic. Nadal became the fourth man, after Roy Emerson, Rod Laver, and Djokovic, to achieve the double career Grand Slam, and the second in the Open Era. He also became the first man in the Open Era to win an Australian Open final after losing the first two sets. This marked the third consecutive year a man trailed by two sets in a major final yet rallied to win, following Djokovic's two-set comeback at the 2021 French Open and Dominic Thiem's at the 2020 US Open.
Andrey Rublev defeated Novak Djokovic in the final, 6–2, 6–7(4–7), 6–0 to win the singles tennis title at the 2022 Serbia Open.
Holger Rune defeated Botic van de Zandschulp in the final by retirement, 3–4 to win the singles tennis title at the 2022 Bavarian International Tennis Championships. It marked Rune's maiden ATP Tour title, making him the third-youngest tournament champion in the Open Era and the first Dane to win an ATP title since Kenneth Carlsen at 2005 Memphis. Van de Zandschulp was also contesting for his maiden title in his first tour final.
The 2022 French Open – Men's singles qualifying are a series of tennis matches that takes place from 16 to 20 May 2022 to determine the sixteen qualifiers into the main draw of the 2022 French Open – Men's singles, and, if necessary, the lucky losers.
Hubert Hurkacz defeated Daniil Medvedev in the final, 6–1, 6–4 to win the singles tennis title at the 2022 Halle Open.
The 2022 US Open – Men's singles qualifying is a series of tennis matches that took place from August 23 to 26, 2022 to determine the sixteen qualifiers into the main draw of the men's singles tournament, and, if necessary, the lucky losers.
The 2023 Australian Open – Men's singles qualifying was a series of tennis matches that took place from 9 to 12 January 2023 to determine the sixteen qualifiers into the main draw of the men's singles tournament, and, if necessary, the lucky losers.
Daniil Medvedev defeated Andy Murray in the final, 6–4, 6–4 to win the singles tennis title at the 2023 ATP Qatar Open. It was his second ATP Tour title in as many weeks. En route to the final, Murray saved eight match points - three in his first-round match against Lorenzo Sonego and five in the semifinals against Jiří Lehečka.
Frances Tiafoe defeated Tomás Martín Etcheverry in the final, 7–6(7–1), 7–6(8–6) to win the singles tennis title at the 2023 U.S. Men's Clay Court Championships. It was Tiafoe's first ATP Tour title in five years.
The 2023 French Open – Men's singles qualifying are a series of tennis matches that take place from 22 to 26 May 2023 to determine the qualifiers for the 2023 French Open – Men's singles, and, if necessary, the lucky losers.
