Points won by each set: [ 34-39, 26-14, 30-32, 28-18, 45-45 ]
Points won directly behind the serve:
21 % Djokovic – 32 of 151
28 % Federer – 45 of 160
That match in my opinion shaped Djokovic  as an ultimate warrior. He had lost to Federer  on the same court their 2007 final, and semifinals of 2008 and 2009. Counting those three matches, and the 3rd set of the 2010 semifinal, he’d lost to Federer 8 out of 9 sets when they went to 5-all on Arthr Ashe Stadium. Therefore the fact he won the 5th set despite trailing *4:5 (15/40), I consider as an incredible effort. He saved the double match point with two forehand winners after 11 and 5 stroke rallies respectively (the first match point FH-drive-volley to be precise) and with the help of this shot he got the final three games (in the last 20 minutes of the match he hit 7 FH winners, 2 of them FH-volleys). Probably that victory allowed Djokovic to comprehend how to distribute his energy throughout a match to deliver his best tennis when it matters the most. He will repeat this awesome feat against his toughest opposition in the next few years in these thrillers: Federer (US Open ’11), Murray & Nadal (Aussie Open ’12), Tsonga (Roland Garros ’12), Del Potro (Wimbledon ’13) and Wawrinka (Australian Open & US Open ’13).