Fred Hayner vs. Kam Mickolio — Career Comparison

On the career pitching numbers, Kam Mickolio posted a stronger line than Fred Hayner. Kam Mickolio posted stronger numbers in ERA (4.83 vs 13.5) and WHIP (1.642 vs 3.000). By the career numbers, Kam Mickolio 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.