Mark Grater vs. Jason Grilli — Career Comparison

Looking at the career totals, Mark Grater and Jason Grilli are fairly close on the surface numbers. Mark Grater posted stronger numbers in ERA (3.38 vs 4.22) and home runs allowed (0 per nine innings vs 1). Jason Grilli had the advantage in WHIP (1.405 vs 2.250). By the career numbers, Mark Grater had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.