Frank Bates vs. John Pregenzer — Career Comparison

On the career pitching numbers, John Pregenzer posted a stronger line than Frank Bates. John Pregenzer posted stronger numbers in ERA (4.88 vs 6.33) and WHIP (1.916 vs 2.082). By the career numbers, John Pregenzer 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.