ATP Finals – Singles

For the first time since October 2012, Grand Slam winning record holder Roger Federer has again climbed to the top of the world tennis rankings. At 36, the Swiss replaced Rafael Nadal (Spain) and officially became the oldest number one in history. The previous record holder was Andre Agassi (USA), who headed the ATP rankings at 33 in 2003.

Grigor Dimitrov is No. 3 in the world rankings. The Bulgarians failed to defend his title from Brisbane and lost 160 points from his assets.

With 4990, the Bulgarian led with 380 points the fourth Alexander Zverev, who had not yet participated in an official tournament in 2018, and in the first week of the new year he was in Perth for Hopman Cup.