In 2011 he made SF-R3-SF-SF
In 2012 he made QF-DNP-R3-QF
In 2013 so far he has made R3-QF.
One hesitates to challenge your stats...!!! - however could it be that the changes to his game needed to get that first GS came at the price of his clay game. I do also wonder if his specific knee problem has a greater impact on him than on other surfaces?
We all know that Murray struggles on clay, I just wonder why knowing that we all get so get up about it. Didn't Lendl struggle more on grass?
It's not about making excuses for him - I have never felt that he or us ever need to make excuses for him. Yesterday may have taken more out of him.
I think he did as well as he could tonight - he might have pulled it off if Berdych had been a bit off form, but I suspect Berdych is still smarting about the USO semi, when he disposed of Fed, but was slain in turn by Murray. I can't see him getting through Nadal.