Whether posted on the scoreboard, judge’s card or clock, sporting feats are measurable and on full display, for the world to see.  Which got us to thinking about the greatest single-season performances in history, many of which are simply mind-numbing.  In 1950, Sugar Ray Robinson went 19-0 with 12 knockouts en route to winning the world welterweight title.  Deacon Jones recorded 26 sacks in 14 games in 1967.