> Ousted from the Australian Open by Andy Murray in the semi-finals.
> Beaten in Rotterdam quarter-finals by Julien Benneteau, breaking a run of 28 consecutive Last-Eight wins against players outside the Top 10.
> Thrashed 1-6, 3-6 by Rafael Nadal in the Rome Masters final, sending him into the French Open without a title in the year for the first time since 2000.
> Defeats Mikhail Youzhny to win first and only title of 2013 at Halle and 77th career trophy to tie John McEnroe at number three in the Open Era title-winners list.
> Crashes out of the French Open after a straight sets defeat in the quarter-finals against Jo-Wilfried Tsonga.
> Hits a new low as the defending champion loses to World No 116 Sergiy Stakhovsky in Round Two at Wimbledon. It is Federer’s earliest defeat at Wimbledon since 2002 and his earliest loss at a Grand Slam since losing in the French Open first round in 2003. The result ends Federer’s run of 36 consecutive Grand Slam quarter-final appearances.
> Appearing in Hamburg for the first time since 2008, Federer loses to World No 114 Federico Delbonis in the quarters. It is just the 12th time in his career he has lost to a player outside the Top 100.
> Fails in his bid to reach his 41st Grand Slam quarter-final when Spain’s Tommy Robredo sweeps to a surprise straight sets win in the US Open fourth round.
> Announces the end of his coaching partnership with Paul Annacone, who had worked with him since July 2010.
> Suffers 22nd career defeat to Nadal to end year with a loss in the semi-finals of the ATP World Tour Finals.