On 3 September Roger Federer qualified for the World Tour Finals, after defeating Marin Čilić in the third round at the US Open, 6–3, 4–6, 6–4, 6–2, marking his tenth consecutive year in the finals.
•
On 10 November Frenchman Jo-Wilfried Tsonga, Czech Tomáš Berdych and American Mardy Fish all qualified after Berdych defeated Janko Tipsarević, the last remaining contender, in the third round of the BNP Paribas Masters.
•
The top eight players (or teams) with the most countable points accumulated in Grand Slam, ATP World Tour, and Davis Cup tournaments during the year qualify for the 2011 Barclays ATP World Tour Finals.
•
Group B is led by the French Open champion and 10-time Slam champion Rafael Nadal, and 16-time Slam champion and French Open runner-up Roger Federer.
•
The defending champion in singles was world no. 4 Roger Federer, while the defending champions in doubles were Daniel Nestor and Nenad Zimonjić.
World Cup | 2011 | ATP International Series | FIFA World Cup | World Trade Center | World Series | 2011 ATP Challenger Tour | 2012 ATP Challenger Tour | 2013 ATP Challenger Tour | 2010 FIFA World Cup | World Bank | World Health Organization | Guinness World Records | PGA Tour | 1978 FIFA World Cup | World Series of Poker | Allies of World War II | ATP International Series Gold | BBC World Service | ATP World Tour 250 series | ATP | World Heritage Site | World Boxing Association | World Boxing Council | 2006 FIFA World Cup | Tour de France | World Wide Web | As the World Turns | World Trade Organization | ATP World Tour 250 Series |