[16] Novak Djokovic began the year by winning the Australian Open, his second Grand Slam title, defeating 2010 runner-up Andy Murray, 6–4, 6–2, 6–3, in the final.

[17] In February, he successfully defended his title for the second time at the Barclays Dubai Tennis Championships, defeating Roger Federer, 6–3, 6–3.

[18] The Serb closed the following month by clinching the "Sunshine double" (both hard-court Masters title in Indian Wells and Miami) for the first time since Roger Federer last did so in 2006.

[19] His flawless season start continued onto the clay circuit with his successful defense of the 2011 Serbia Open trophy against Feliciano López, 7–6, 6–2.

[20] Djokovic went on to win his seventh title of the year in the Madrid Masters, ending defending champion Nadal's clay dominance in straight sets.

[22] His 43-match winning streak ended in the 2011 French Open, when Roger Federer—whom he had beaten three times in 2011 and who was the last to beat him in the 2010 ATP World Tour Finals—overcame him in four sets, 6–7, 3–6, 6–3, 6–7in the semifinal.

[23] Djokovic then won his first grass title and first non-Australian Grand Slam at Wimbledon, defeating Rafael Nadal, 6–4, 6–1, 1–6, 6–3, in the final.

[11] Rafael Nadal began his season at the 2011 Qatar Open, being defeated in straight sets by defending champion Nikolay Davydenko in the semifinals.

[31] He went on to the Australian Open, where he also reached the quarterfinals, losing to compatriot David Ferrer in straight sets, which ended his chances of a "Rafa Slam".

[32] In the Indian Well-Miami Masters swing, Nadal reached the final twice, but lost both times to Novak Djokovic, both in three tight sets.

[12] Andy Murray began the year by reaching his third Grand Slam final at the 2011 Australian Open, but once again fell in straight sets, 4–6, 2–6, 3–6, to Novak Djokovic.

[17] Murray lost his next three matches, but recovered in the clay season, reaching the semifinals of the 2011 Monte-Carlo Rolex Masters and 2011 Internazionali BNL d'Italia.

He beat Rafael Nadal in singles 3–6, 6–2, 6–0; and partnering brother Jamie Murray he won the doubles title as well.

[44] He then completed the sweep by successfully defending his title at the 2011 Shanghai Rolex Masters, defeating David Ferrer in the final, 7–5, 6–4.

[13] Roger Federer began the year by winning the 2011 Qatar Open, defeating Nikolay Davydenko, 6–3, 6–3, without dropping a set in the tournament.

[49] The following week, Federer won his first BNP Paribas Masters title in Paris after defeating Jo-Wilfried Tsonga in straight sets, 6–1, 7–6.

[56] He reached the third round of the Australian Open[56] and made his first final since October 2009 at the World Tennis Tournament in Rotterdam, where he lost to Robin Söderling 3–6, 6–3, 3–6.

[1] Tomáš Berdych's season was characterised by repeated appearances in Masters' quarter- and semifinals, with poorer performances at Grand Slams.

[61] After struggling with injuries in February, Berdych made a number of quarter- and semifinals in the clay and grass court seasons, but did not progress to any finals.

At the French Open, Berdych suffered a shocking first-round loss to Stéphane Robert, 6–3, 6–3, 2–6, 2–6, 7–9,[62] and was defeated 6–7, 4–6, 4–6 by Mardy Fish in the fourth round of Wimbledon.

[67] He then reached his fourth Masters final of his career at the Rogers Cup, but once again lost, this time to Novak Djokovic, 6–2, 3–6, 6–4,[26] At the Grand Slams, he was upset by Tommy Robredo in the second round of the Australian Open 6–1, 3–6, 3–6, 3–6.

He reached five finals in the year, the first coming in the Delray Beach International Tennis Championships, however he fell to Juan Martín del Potro 4–6, 4–6.

At the South American Clay season, Almagro reached 3 consecutive final, first winning back-to-back titles at the Brasil Open defeating Alexandr Dolgopolov 6–3, 7–6[73] and Copa Claro over Juan Ignacio Chela 6–3, 3–6, 6–4.

[86] They had a good run at the US Open Series as they claimed their first titles back-to-back as a team and reached 3 consecutive finals.

[99] They then reached back-to-back finals at the Erste Bank Open and Swiss Indoors Basel but end up in the losing side to Bryan/Bryan 6–7, 3–6[92] and to Llodra/Zimonjić 4–6, 5–7,[100] respectively.

[107] Melzer also won the Mixed Doubles title at the Wimbledon with Iveta Benešová defeating the team of Bhupathi/Vesnina 6–3, 6–2 in the final.

[1][108] On 1 November, the pair of Swede Robert Lindstedt & Romanian Horia Tecău were announced as sixth team to qualify.

Robert Lindstedt and Horia Tecău started the year by reaching the final of the Brisbane International but had to retire after losing the first set 6–4 against Dlouhý/Hanley.

[98] Tecău also won two other titles in the year with different partners, at the PBZ Zagreb Indoors with Dick Norman defeating the team of Granollers/López 6–3, 6–4 in the final.

[117] Qureshi also won another title with Oliver Marach at the PTT Thailand Open against the German team of Kohlmann/Waske in two close sets 7–6, 7–6.