This was the first edition of the tournament since 1991.
Thomaz Bellucci won the title, defeating João Sousa in the final, 7–6(7–4), 6–4.
Marin Čilić defeated Andy Murray in the final, 6–4, 7–5 to win the men's singles tennis title at the 2016 Cincinnati Masters. It was his maiden Masters 1000 title, ending a streak of 18 consecutive Masters events won by a member of the Big Four.
Andy Murray defeated Roberto Bautista Agut in the final, 7−6(7−1), 6−1 to win the singles tennis title at the 2016 Shanghai Masters. It was his third Shanghai Masters and 13th Masters 1000 title overall.
Defending champion Rafael Nadal defeated Albert Ramos Viñolas in the final, 6–1, 6–3 to win the singles tennis title at the 2017 Monte-Carlo Masters. It was his record-extending 10th Monte Carlo Masters title, becoming the first man in the Open Era to win 10 singles titles at the same tournament. Nadal also claimed his Open Era record 50th clay court title.
Yūichi Sugita was the defending champion but lost in the second round to Pierre-Hugues Herbert.
Damir Džumhur was the defending champion, but retired from his quarterfinal match against Jordan Thompson.
Dominic Thiem was the defending champion, but chose to compete in the Laver Cup instead.
This was the first edition of the tournament.
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.
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.
The 2020 Astana Open is an ATP tournament organised for male professional tennis players, held in Nur-Sultan, Kazakhstan, at the end of October 2020 on indoor hard courts. It was primarily organised due to the cancellation of many tournaments during the 2020 season, because of the ongoing COVID-19 pandemic. It is the first edition of the tournament and it took place in Nur-Sultan, Kazakhstan, from October 26 through November 1, 2020.
Daniil Medvedev was the defending champion, but chose not to defend his title.
Aslan Karatsev won his first ATP Tour singles title, defeating Lloyd Harris in the final, 6–3, 6–2 to win the men's singles tennis title at the 2021 Dubai Tennis Championships. Karatsev became the second wildcard in the tournament's history to win the men's singles title. Harris was the first qualifier to reach the final of the Dubai Tennis Championships.
Hubert Hurkacz defeated Jannik Sinner in the final, 7–6(7–4), 6–4 to win the men's singles tennis title at the 2021 Miami Open. Hurkacz claimed his first Masters 1000 singles championship and became the first Pole to win a Masters 1000 singles title.
Matteo Berrettini defeated Aslan Karatsev in the final, 6–1, 3–6, 7–6(7–0) to win the men's singles tennis title at the 2021 Serbia Open.
Daniil Medvedev defeated Reilly Opelka in the final, 6–4, 6–3 to win the men's singles tennis title at the 2021 Canadian Open. It was his fourth ATP Masters 1000 title and 12th career title. Opelka was contesting his maiden Masters 1000 final.
Andrey Rublev was the reigning champion from when the tournament was last held in 2019, but lost to Adrian Mannarino in the second round in a rematch of the 2019 final.
Andrey Rublev was the defending champion, but lost in the quarterfinals to Botic van de Zandschulp.
Andrey Rublev defeated Félix Auger-Aliassime in the final, 7–5, 7–6(7–4) to win the singles title at the 2022 Open 13 Provence.
Félix Auger-Aliassime defeated J. J. Wolf in the final, 6–4, 6–4 to win the singles tennis title at the 2022 Firenze Open. It was his second ATP Tour singles title.
John Millman 
Adrian Mannarino 
