Doug Bird vs. Jeff Plympton — Career Comparison

Looking at the career totals, Doug Bird and Jeff Plympton are fairly close on the surface numbers. Jeff Plympton posted stronger numbers in ERA (0 vs 3.99) and home runs allowed (0 per nine innings vs 0.9). Doug Bird had the advantage in WHIP (1.339 vs 1.688). By the career numbers, Jeff Plympton 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.