Paul Siebert vs. John Sowders — Career Comparison

Looking at the career totals, Paul Siebert and John Sowders are fairly close on the surface numbers. Paul Siebert had the edge in ERA (3.77 vs 4.29). By the career numbers, Paul Siebert 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.