Pedro Borbon vs. Ron Keller — Career Comparison

Looking at the career totals, Pedro Borbon and Ron Keller are fairly close on the surface numbers. Pedro Borbon posted stronger numbers in WHIP (1.395 vs 1.453) and home runs allowed (0.55 per nine innings vs 1.27). Ron Keller had the advantage in ERA (3.38 vs 3.52). 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.