Don Kaiser vs. John Mickey — Career Comparison

On the career pitching numbers, Don Kaiser posted a stronger line than John Mickey. Don Kaiser posted stronger numbers in ERA (4.15 vs 6.14) and WHIP (1.458 vs 1.909). By the career numbers, Don Kaiser 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.