You really have to feel for Cubs’ pitcher Jeff Samardzija. He’s been pitching great so far this season, with an ERA (as of this writing) of 1.62 and 51 strikeouts in 61 innings pitched over 9 starts. But thanks to essentially no offensive support and crappy defense behind him, he’s stuck with an 0-4 record.
This, along with a few other unusual situations (e.g. Chris Sale in 2013 (who, by the way, was ROBBED of the All-Star Game MVP that year), Felix Hernandez in 2010), has led a number of fans and writers to argue that the “pitcher’s wins” stat is irrelevant, or at least vastly overrated. First, they argue, it is too dependent on factors outside the pitcher’s control – like run support and defense. Secondly, they note that the assignment of a Win is often arbitrary, as it can depend on the whim of the official scorer. Other stats, such as WHIP (Walks and Hits per Inning Pitched) and ERA+ are far better at showing the quality of a pitcher.
That might be true. But those stats, being derived from odd and occasionally arcane formulae, can have similar problems. If we accept that these new, advanced metrics can accurately describe the “quality” of a pitcher, how does the “old school” stat of Wins compare?
Fortunately, there’s a way to tell. But you have to step away baseball stats for a while, and dive in to the mathematical field of Statistics….