I have to disagree.... Tiger is the only one who has held all four majors at the same time. Including the Players Championship and he is doing it in a time when the golfers are quite a bit better than golfers of yesteryear. No offense to Jack, Arnie, Bobby et al, but they didn't have the stiff competition or the PGA tour events making the course playing conditions tougher trying to keep scores higher. But then again it might be those Nike balls, Nike spikes etc... I gotta go to the golf shop now!