Mike Caldwell vs. Don Kaiser — Career Comparison

On the career pitching numbers, Mike Caldwell posted a stronger line than Don Kaiser. Mike Caldwell posted stronger numbers in ERA (3.81 vs 4.15) and WHIP (1.345 vs 1.458). By the career numbers, Mike Caldwell 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.