Bill Barnwell uses a z-score to rate various golfing performances to each other. McIlroy’s 2011 US Open is up there (in the top 25), but Tiger’s 2000 destruction of Pebble Beach is as far above the second-best performance of all time as that performance (by Davis Love III) is above the twentieth. Also interesting that Niklaus’ second-place (e.g. losing) effort in the 1977 British Open still ranks as one of the greatest all-time individual performances in golf. Good on you, Jack.