Well, I believe you have a legitimate shot to the extent of you have a one in eight chance but if the playoffs started tomorrow (with Beckett's struggles, etc.), how could anyone think the Sox have even a decent chance?
How is it important at all? A statistic's value is based entirely on the other statistics that are available to measure a pitcher's effectiveness. There are so many variables that factor into wins and losses and pretty much a more effective statistic is available to eliminate all of those variables.