Mark Kiefer vs. Dale Thayer — Career Comparison

On the career pitching numbers, Dale Thayer posted a stronger line than Mark Kiefer. Dale Thayer posted stronger numbers in ERA (3.47 vs 4.29) and WHIP (1.264 vs 1.481). By the career numbers, Dale Thayer 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.