ATP World Tour Finals
The final event on the ATP Tour schedule, the ATP World Tour Finals feature the top eight singles players and doubles teams of the ATP rankings. The season-ending championships have been held at the O2 Arena in London since 2009 and has since established itself as the biggest indoor tennis tournament in the world, attracting crowds in excess of 1.8 million since it was first hosted. After being unbeaten throughout the round robin, Andy Murray then defeated Milos Raonic on his way to the final where he faced Novak Djokovic. A straight sets victory saw Murray become the first player to win Grand Slam, ATP World Tour Finals, Olympic Games and Masters 1000 titles in the same year, where he also ended the year as World Number One.