Yes, Nadal is up 24-16 all time, but the majority of his wins are one surface. On grass and hardcourt, Federer is up 14-10 all time in head to head. On clay, Nadal is unstoppable pretty much and is 12-2 against Federer. That is obviously not to take anything away from Nadal...but their head to head is pretty fantastic overall, but clay definitely changes up the results.