The players who lost to Murray at the US Open 2012 (in brackets the number of times they lost to an eventual slam winner):
F: Novak Djokovic (11)
SF: Thomas Berdych (4)
QF: Marin Cilic (2)
R16: Milos Raonic (1)
R32: Feliciano Lopez (4)
R64: Ivan Dodig (2)
R128: Alex Bogomolov jr. (2)
-Novak Djokovic has either won or lost to the eventual winner in the last 6 slams (and 8 out of the last 9)
-Berdych has lost to the eventual winner only four times, but all came in different rounds (apart from this semifinal loss that's the Wimbledon final 2010 against Nadal, Aussie Open quarterfinal 2011 against Djokovic and the 2006 Wimbledon R16 against Federer). That also makes a quartet of the big four. Well played, Berdych!
-Both of Cilic losses came in the quarterfinal. He also lost the 2009 US Open quarterfinal against Del Potro. New rule: if you want to win your first slam, beat Cilic in the quarterfinals!
-Dodigs two losses came in the second round.
-Bogomolov has lost to the eventual winner twice, both times in the first round. The first time this happened? Australian Open 2004 against Federer! God, I love this thread!