Kevin Campbell vs. Ken Penner — Career Comparison

On the career pitching numbers, Ken Penner posted a stronger line than Kevin Campbell. Ken Penner posted stronger numbers in ERA (3.55 vs 4.55) and home runs allowed (0.36 per nine innings vs 0.72). By the career numbers, Ken Penner 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.