page_title: 2009 ATP World Tour Finals
section_title: Singles qualification
hierarchical_section_title: 2009 ATP World Tour Finals / Qualification / Singles qualification
caption_attribution_description: English: Fernando Verdasco at 2009 Roland Garros, Paris, France
context_page_description: The 2009 ATP World Tour Finals was held in London, United Kingdom between 22 November and 29 November 2009. It was the first time the O₂ arena hosted the ATP World Tour Year-End Singles and Doubles Championships. The event was renamed from Tennis Masters Cup to ATP World Tour Finals following the rearrangement of the ATP Tour.
context_section_description: On 19 May 2009 after reaching his 7th final of the year at the 2009 Mutua Madrileña Madrid Open, 2009 Australian Open champion Rafael Nadal of Spain was announced as the first qualifier.
  Rafael Nadal began the year by winning his first Grand Slam on hardcourt at the Australian Open, defeating Roger Federer in the final 7–5, 3–6, 7–6, 3–6, 6–2, just after defeating Fernando Verdasco in a tournament record 5 hours 14 minutes battle in five sets. Following his Australian Open triumph he reached the final of the ABN AMRO World Tennis Tournament losing to Andy Murray. He then revenged his loss by defeating Murray in the final of BNP Paribas Open. He then won three straight titles at the Monte-Carlo Rolex Masters, the Internazionali BNL d'Italia and at the Barcelona Open Banco Sabadell. He then lost in his fourth straight final in the Mutua Madrileña Madrid Open to Federer. He was the four-time defending champion at Roland Garros and had a 31-match winning streak in Paris, broken with a surprise fourth round loss to No. 23-seeded Robin Söderling. He then missed Wimbledon becoming the first player since Ivanišević to not defend his title, and lost his no. 1 ranking to Federer. He then returned at the Rogers Masters but he did not reach a final until the Shanghai ATP Masters 1000 losing to Nikolay Davydenko. He also reached the semifinals of the US Open and the Western & Southern Financial Group Masters. Nadal has a 4–4 record at the championship and reached the semifinals in 2006 and 2007. This is his 3rd appearance
  On 5 July – after the 2009 Wimbledon Championships – Roger Federer of Switzerland who won his 15th Slam at the tournament over Andy Roddick was announced as the second qualifier. 
  Roger Federer began the year with a loss to Rafael Nadal at the final of the Australian Open. He won his first title of the year at the Mutua Madrileña Madrid Open defeating Nadal in the final. For his first win over Nadal since 2007 and ending Nadal's 5 match winning streak. After Nadal's early exit, Federer snapped up the French Open, beating Robin Söderling 6–1, 7–6, 6–4 in the final  to complete the career Grand Slam. At Wimbledon Federer defeated Andy Roddick in the final. It was the longest match in the final of Wimbledon in terms of games 5–7, 7–6, 7–6, 3–6, 16–14. Federer reclaimed the world no. 1 ranking and broke Pete Sampras's Grand Slam record with a 15th Grand Slam. He won his 4th title of the year at the Western & Southern Financial Group Masters defeating Novak Djokovic. He was also a runner-up at the US Open losing to Juan Martín del Potro and the Davidoff Swiss Indoors losing to Djokovic ending his 3-year run at the tournament. He also reached 4 semi-finals at the Internazionali BNL d'Italia, Sony Ericsson Open, BNP Paribas Open and the Qatar ExxonMobil Open. He has a 27–5 record in the championship having won it on 4 occasions in 2003, 2004, 2006 and 2007. This is his 8th appearance.
  On 20 August – After his title in the 2009 Rogers Masters defeating Juan Martín del Potro, Andy Murray of Great Britain was announced as the third qualifier.
  Andy Murray won six titles in the year, more than anyone else. With titles in the Qatar ExxonMobil Open, the ABN AMRO World Tennis Tournament, the Sony Ericsson Open. As well as at Queens, in the Rogers Cup and in the Open de Tenis Comunidad Valenciana defeating Mikhail Youzhny. He was also the runner up at the BNP Paribas Open. He missed the Asian Leg due to a wrist injury. At the slams he reached the semifinals for the first time at Wimbledon, as well as the quarterfinals of the French Open for the first time. This is his second appearance with a 3–1 record following his semifinal appearance last year.
  On 10 September – Novak Djokovic of Serbia the defending champion was the Fourth to qualify following his third straight semifinal appearance at the 2009 US Open.
  Novak Djokovic made his tennis do the talking as he won his first title of the year in Dubai Tennis Championships defeating David Ferrer. He then won three other titles in the inaugural Serbia Open defeating Łukasz Kubot, China
caption: Fernando Verdasco makes his debut at the championship
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