Lucas Pouille was the defending champion, but lost in the second round to Marius Copil.
Alexander Zverev was the defending champion, but chose not to participate this year.
Andy Murray was the defending champion, but could not participate this year as he was recovering from hip surgery.
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. Del Potro saved three championship points en route to his first ATP Tour Masters 1000 title, having been a runner-up on three previous occasions.
The 2018 Gazprom Hungarian Open was a men's tennis tournament played on outdoor clay courts. It was the 2nd edition of the Hungarian Open, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place at Nemzeti Edzés Központ in Budapest, Hungary, from April 23–29.
Roger Federer was the defending champion, but lost to Borna Ćorić in the final. This was Ćorić's first ATP 500 title. With Federer's loss, Rafael Nadal regained the world No. 1 ranking.
Novak Djokovic was the defending champion, but chose not to participate this year.
Peter Gojowczyk was the defending champion, but lost to Kei Nishikori in the second round.
Rafael Nadal was the defending champion but withdrew with a knee injury before the tournament began.
Novak Djokovic defeated Borna Ćorić in the final, 6–3, 6–4 to win the singles title at the 2018 Shanghai Masters. It was his record fourth Shanghai Masters title, and 32nd Masters 1000 title overall.
Dominic Thiem defeated Roger Federer in the final, 3–6, 6–3, 7–5, to win the men's singles title at the 2019 Indian Wells Masters. It was his first ATP Tour Masters 1000 title. Thiem became the first Austrian to win a Masters 1000-level title since Thomas Muster won the 1997 Miami Open.
Marco Cecchinato was the defending champion, but withdrew due to illness.
Alexander Zverev was the two-time defending champion, but lost to Cristian Garín in the quarterfinals.
Novak Djokovic was the defending champion, but lost to Stefanos Tsitsipas in the quarterfinals.
Daniil Medvedev defeated Alexander Zverev in the final, 5–7, 6–4, 6–1, to win the singles title at the 2020 Paris Masters.
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.
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.
Matteo Berrettini was the defending champion from when the event was last held in 2019, but could not participate since he was still competing in the 2021 French Open at the beginning of the tournament.
Feliciano López was the defending champion from when the event was last held in 2019, but lost in the second round to Denis Shapovalov.
Carlos Alcaraz defeated Diego Schwartzman in the final, 6–4, 6–2 to win the singles title at the 2022 Rio Open. Alcaraz became the youngest winner of an ATP Tour 500 event since the category was created in 2009.
Marco Cecchinato 
John Millman 
