Jo-Wilfried Tsonga was the defending champion, but he was defeated in the semifinals by countryman Julien Benneteau 7–6(13–11), 5–7, 7–6(7–3).
Andy Roddick defeated Tomáš Berdych in the final, 7–5, 6–4 to win the men's singles tennis title at the 2010 Miami Open. It was his first Masters title since 2006, and his second career Miami Open title.
Robin Söderling defeated Gaël Monfils in the final, 6–1, 7–6(7–1) to win the singles tennis title at the 2010 Paris Masters. Both players saved match points en route to the final; Söderling saved three in his semifinal against Michaël Llodra, while Monfils saved five in his semifinal against Roger Federer.
Rubén Ramírez Hidalgo was the defending champion; however, he was eliminated already in the first round by Ivo Klec.
Jürgen Melzer was the defending champion, but lost in the first round to Igor Sijsling.
Kei Nishikori won the title, defeating Feliciano López in the final, 6–2, 6–3.
Alexandr Dolgopolov was the defending champion, but lost to Indian qualifier Somdev Devvarman in the second round.
Novak Djokovic defeated Roger Federer in the final, 3–6, 6–3, 7–6(7–3) to win the men's singles tennis title at the 2014 Indian Wells Masters. It was his third Indian Wells title.
John Isner was the defending champion and successfully defended the title, defeating Dudi Sela in the final, 6–3, 6–4.
Juan Martín del Potro was the defending champion, but was unable to participate this year due to a wrist injury.
Marin Čilić was the two-time defending champion, but withdrew before the tournament started due to an arm injury.
Roger Federer defeated Stan Wawrinka in the final, 6–4, 7–5 to win the men's singles tennis 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. He did not lose a single set in the entire tournament.
Harri Heliövaara and Illya Marchenko were the defending champions but chose not to defend their title. The tournament was canceled prior to completion due to the coronavirus pandemic.
Jannik Sinner defeated Vasek Pospisil in the final, 6–4, 3–6, 7–6(7–3) to win the singles tennis title at the 2020 Sofia Open. It was his first ATP Tour title.
This was the first of seven editions of the tournament in the 2021 tennis season.
This was the second of seven editions of the tournament in the 2021 tennis season. Illya Marchenko was the defending champion but lost in the quarterfinals to Andreas Seppi.
Matteo Berrettini defeated Cameron Norrie in the final, 6–4, 6–7(5–7), 6–3, to win the singles tennis title at the 2021 Queen's Club Championships. Berrettini's win earned him his fourth career ATP Tour singles title, his first ATP 500 victory, and also made him the first player to win the tournament on their main draw debut since Boris Becker in 1985. Norrie was contesting for his first title in his fourth career final.
Alex de Minaur was the reigning champion from when the tournament was last held in 2019, but chose not to participate this year.
Jannik Sinner defeated Mackenzie McDonald in the final, 7–5, 4–6, 7–5 to win the singles tennis title at the 2021 Citi Open. With the victory, Sinner became the youngest player and first teenager on the ATP Tour to win an ATP 500 title since the category was created in 2009.
John Millman was the defending champion, but lost in the quarterfinals to James Duckworth.
This was the first edition of the tournament.
Mohamed Safwat (third round)
Yannick Maden (second round, withdrew)
Kimmer Coppejans 
Jurij Rodionov (third round)
Robin Haase (second round)
Mikael Torpegaard (third round, withdrew)
Dmitry Popko (second round)
Enzo Couacaud (second round, withdrew)
Ramkumar Ramanathan (second round)
Roman Safiullin 
Frederico Ferreira Silva (second round, retired)
Elias Ymer (third round)
Illya Marchenko 
Bernabé Zapata Miralles 
