The 2009 ATP World Tour Finals (also known as the 2009 Barclays ATP World Tour Finals) will be held in London, United Kingdom between November 22 and November 29 2009. It will be the first time the O2 arena hosts the ATP World Tour Year-End Singles and Doubles Championships.
Only the best eight singles players and best eight doubles teams of the year will qualify for the prestigious Barclays ATP World Tour Finals, to be played for the first time in 2009 at The O2 arena in London. Final standings in the South African Airways 2009 ATP Rankings will be determined and the ATP World Tour Champion will be crowned.