Kevin Anderson was the defending champion, but lost in the second round to Jiří Veselý.
Roger Federer defeated Stan Wawrinka in the final, 6–4, 7–5 to win the men's singles title at the 2017 Indian Wells Masters. It was his record-equaling fifth Indian Wells title, 25th ATP Tour Masters 1000 singles title, and 90th singles title overall.
Jack Sock was the defending champion, but lost in the second round to Peter Gojowczyk.
Roberto Bautista Agut was the defending champion, but withdrew before the tournament began.
Roberto Bautista Agut was the defending champion, but lost in the second round to Nikoloz Basilashvili.
Roger Federer defeated the defending champion John Isner in the final, 6–1, 6–4 to win the men's singles tennis title at the 2019 Miami Open. It was Federer's fourth Miami Open title, his 28th Masters singles title, and his 101st career singles title overall.
Dominic Thiem was the defending champion, but he chose not to defend his title this year.
Daniil Medvedev defeated David Goffin in the final, 7–6(7–3), 6–4, to win the 2019 Cincinnati Masters. It was his first ATP Masters 1000 title.
Nikoloz Basilashvili was the defending champion, but lost in the second round to Stefanos Tsitsipas.
Novak Djokovic was the defending champion, but lost to Stefanos Tsitsipas in the quarterfinals.
Novak Djokovic defeated Milos Raonic in the final, 1–6, 6–3, 6–4, to win the men's singles title at the 2020 Cincinnati Masters. With the win, he claimed his record-equaling 35th ATP Masters 1000 title, and completed the career Golden Masters for a second time. Djokovic became the first new singles titlist on the ATP Tour since its suspension due to the COVID-19 pandemic in March 2020.
The 2020 Hamburg European Open was a men's tennis tournament played on outdoor red clay courts. It was the 114th edition of the German Open Tennis Championships and part of the ATP Tour 500 series of the 2020 ATP Tour. Originally scheduled for 13 to 19 July 2020, but due to the ongoing COVID-19 pandemic, it was rescheduled from 20 to 27 September 2020 and took place at the Am Rothenbaum in Hamburg, Germany.
Novak Djokovic defeated Diego Schwartzman in the final, 7–5, 6–3 to win the men's singles title at the 2020 Italian Open. It was his fifth Rome Masters title and record 36th ATP Masters 1000 title overall. Djokovic entered his 287th week as world No. 1 following the tournament.
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 man to win a tournament at this level. Rublev was also in contention for his maiden Masters 1000 title.
Rafael Nadal defeated Stefanos Tsitsipas in the final, 6–4, 6–7(6–8), 7–5 to win the singles title at the 2021 Barcelona Open. Nadal saved a championship point en route to his record-extending 12th Barcelona Open title and 61st ATP Tour singles title on clay. It became the second tournament at which Nadal had earned 12 or more victories, after the French Open. At three hours and 38 minutes, the final match was also the longest best-of-three-set tour-level final ever recorded since the Association of Tennis Professionals began tracking statistics in 1991. Tsitsipas, who had also lost to Nadal in his first career ATP singles final at this tournament in 2018, was in contention to win his first ATP 500 tournament title on his seventh attempt.
Alexander Zverev defeated Matteo Berrettini in the final, 6–7(8–10), 6–4, 6–3 to win the men's singles tennis title at the 2021 Madrid Open. It was Zverev's fourth ATP Masters 1000 title, his first since winning Madrid in 2018, and his 15th career ATP Tour singles title overall. Berrettini was in contention to become the second Italian to be crowned a Masters 1000 champion in his first final at this level.
Rafael Nadal defeated the defending champion Novak Djokovic in the final, 7–5, 1–6, 6–3 to win the men's singles tennis title at the 2021 Italian Open. It was his record-extending 10th Italian Open title and record-equaling 36th Masters 1000 title overall. Nadal saved two match points in his third round match against Denis Shapovalov en route to the title. This was also the fourth time that Nadal had won a tournament on 10 or more occasions, making him the only tennis player with the feat.
Roger Federer was the defending champion from when the event was last held in 2019, but lost in the second round to Félix Auger-Aliassime.
Alexander Zverev defeated Andrey Rublev in the final, 6–2, 6–3 to win the men's singles title at the 2021 Cincinnati Masters. It was his fifth ATP Tour Masters 1000 title and 17th career singles title on the ATP Tour.
Defending champion Stefanos Tsitsipas defeated Alejandro Davidovich Fokina in the final, 6–3, 7–6(7–3) to win the singles tennis title at the 2022 Monte-Carlo Masters. He became the sixth player to win consecutive titles at the Monte-Carlo Masters in the Open Era. The win also earned him his second Masters 1000 title and his eighth career singles title overall.
Andrey Rublev 
Stefanos Tsitsipas 
