Mario Hollands vs. Jim Willoughby — Career Comparison

Looking at the career totals, Mario Hollands and Jim Willoughby are fairly close on the surface numbers. Jim Willoughby posted stronger numbers in ERA (3.79 vs 4.4) and WHIP (1.329 vs 1.447). Mario Hollands had the advantage in home runs allowed (0.57 per nine innings vs 0.93). By the career numbers, Jim Willoughby 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.