John Hibbard vs. Jim Peterson — Career Comparison

On the career pitching numbers, John Hibbard posted a stronger line than Jim Peterson. John Hibbard posted stronger numbers in ERA (2.65 vs 5.27) and WHIP (1.588 vs 1.665). By the career numbers, John Hibbard 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.