Pedro Borbon vs. John Shaffer — Career Comparison

Looking at the career totals, Pedro Borbon and John Shaffer are fairly close on the surface numbers. Pedro Borbon posted stronger numbers in ERA (3.52 vs 4.57) and WHIP (1.395 vs 1.492). John Shaffer had the advantage in home runs allowed (0.15 per nine innings vs 0.55). By the career numbers, Pedro Borbon 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.