Michael Petersen vs. Daniel Webb — Career Comparison

Looking at the career totals, Michael Petersen and Daniel Webb are fairly close on the surface numbers. Daniel Webb posted stronger numbers in ERA (4.5 vs 5.02) and home runs allowed (0.74 per nine innings vs 1.43). Michael Petersen had the advantage in WHIP (1.593 vs 1.691). By the career numbers, Daniel Webb 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.