Stanislas Wawrinka was the defending champion, but withdrew before the event started.
Carlos Berlocq won the title, defeating Tomáš Berdych in the final, 0–6, 7–5, 6–1.
Juan Martín del Potro was the defending champion, but was unable to participate this year due to a wrist injury.
Andy Murray was the two-time defending champion but lost to Jordan Thompson in the first round.
Alexander Zverev defeated Roger Federer in the final, 6–3, 6–4 to win the men's singles tennis title at the 2017 Canadian Open. Zverev saved three match points en route to the title, in his second-round match against Richard Gasquet.
Jack Sock was the defending champion, but lost in the second round to Reilly Opelka.
Dominic Thiem defeated Roger Federer in the final, 3–6, 6–3, 7–5 to win the men's singles tennis title at the 2019 Indian Wells Masters. It was his maiden ATP Tour Masters 1000 title, and he became the first Austrian to win a Masters title since Thomas Muster won the 1997 Miami Open.
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 and final Masters singles title, and his 101st career singles title overall.
Cristian Garín defeated Casper Ruud in the final, 7–6(7–4), 4–6, 6–3, to win the singles tennis title at the 2019 U.S. Men's Clay Court Championships. The win earned Garín his first career Association of Tennis Professionals (ATP) singles title and made him the first Chilean ATP title holder in ten years. Ruud was also in contention to win his first ATP Tour title after reaching his first final, joining father Christian Ruud as the only two Norwegian players to reach a final at this level.
The 2020 Delray Beach Open was a professional men's tennis tournament played on hard courts. It was the 28th edition of the tournament, and part of the 2020 ATP Tour. It took place in Delray Beach, Florida, United States between 17 February and 23 February 2020.
Reilly Opelka was the defending champion, but lost to Jason Jung in the quarterfinals.
Novak Djokovic defeated Milos Raonic in the final, 1–6, 6–3, 6–4 to win the men's singles tennis title at the 2020 Cincinnati Masters. With the win, he claimed his record-equaling 35th Masters 1000 title, and completed the double career Golden Masters. Djokovic became the first new singles titlist on the ATP Tour since its suspension due to the COVID-19 pandemic in March 2020.
The tournament was played on a hard surface. Due to the ongoing COVID-19 pandemic and many ATP tournaments having been cancelled, this year's event was upgraded to ATP 500 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 en route to the title, in his third round match against Denis Shapovalov. 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.
Daniil Medvedev defeated Sam Querrey in the final, 6–4, 6–2, to win the singles tennis title at the 2021 Mallorca Championships. It was Medvedev's first career grass court final and singles title on the ATP Tour, and he dropped just one set en route to the victory. Querrey was contesting for his first title in four years.
Alex de Minaur was the reigning champion from when the tournament was last held in 2019, but chose not to participate this year.
Cameron Norrie defeated Reilly Opelka in the final, 7–6(7–1), 7–6(7–4) to win the singles title at the 2022 Delray Beach Open.
Taylor Fritz defeated Rafael Nadal in the final, 6–3, 7–6(7–5) to win the men's singles tennis title at the 2022 Indian Wells Masters. It was his maiden Masters 1000 title and second career title overall. Fritz became the first American to win the title since Andre Agassi in 2001, and ended Nadal's 20-match winning streak, dating back to the 2022 Melbourne Open.
Carlos Alcaraz defeated Casper Ruud in the final, 7–5, 6–4 to win the men's singles tennis title at the 2022 Miami Open. It was his first Masters 1000 title, and he became the first Spaniard to win the title. The victory also made Alcaraz, at 18 years and 333 days old, the youngest men's singles titlist in Miami Open history, and the youngest Masters 1000 champion since Rafael Nadal at the 2005 Monte Carlo Masters. Ruud became the first Norwegian to reach a Masters 1000 final, and the first Scandinavian since Robin Söderling at the 2010 Paris Masters.
Carlos Alcaraz defeated Daniil Medvedev in the final, 6–3, 6–2 to win the men's singles tennis title at the 2023 Indian Wells Masters. He did not drop a set en route to his third ATP Tour Masters 1000 title and eighth career title overall. With the win, he usurped Novak Djokovic for the ATP No. 1 ranking, who was unable to enter the United States due to being unvaccinated for COVID-19. With this victory, Alcaraz ended Medvedev's 19-match winning streak, and Medvedev became the first Russian to make it to a Indian Wells final since Andrei Chesnokov in 1992.
Daniil Medvedev defeated Jannik Sinner in the final, 7–5, 6–3 to win the men's singles tennis title at the 2023 Miami Open. It was his fifth ATP Tour Masters 1000 title, fourth title of 2023, and 19th career title overall. He became only the eighth man to win 5 or more ATP Masters Titles.
Reilly Opelka 
Yoshihito Nishioka 
