World number one Novak Djokovic on 22 November 2015 won the season-ending ATP World Tour finals. In the title clash played in London, Djokovic defeated third seed Roger Federer, in straight sets, 6-3, 6-4.
With this, he also became the first player to win ATP world tour finals for the fourth consecutive time. He also surpassed Ivan Lendl's 1987 feat, when he had won his third straight Tour Finals title in New York.
Overall, this was the fifth time that Djokovic won this tournament. He ends the year with 11 titles, including three Grand Slams, taking his total to 10 majors.
Besides, in the Doubles, the eighth seeded Indo-Romanian team of Rohan Bopanna and Florin Mergea has ended as runner up. They lost to the second seeded Dutch-Romanian team of Jean-Julien Rojer and Horia Tecau, 6-4, 6-3.
Bopanna was appearing in his second season-end Finale, having reached the final with Mahesh Bhupathi in 2012.
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When: 22 November 2015