Don Bradman

The Australian batsman who played from 1928 to 1948 has a Test batting average of 99.94 -- so far above the second-highest average of 61.87 that statisticians have calculated it represents a 4 standard deviation outlier from the mean performance of all cricketers, more extreme than any outlier in any other professional sport. England's 1932-33 Bodyline series -- bowling short-pitched deliveries at Bradman's body -- was devised specifically to curb his scoring and caused a diplomatic crisis between Australia and Britain.