Jeremy Affeldt vs. Walter Signer — Career Comparison

Looking at the career totals, Jeremy Affeldt and Walter Signer are fairly close on the surface numbers. Walter Signer posted stronger numbers in ERA (3 vs 3.97) and WHIP (1.333 vs 1.448). Jeremy Affeldt had the advantage in home runs allowed (0.74 per nine innings vs 1.09). By the career numbers, Walter Signer 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.