Bob Blewett vs. John Cattanach — Career Comparison

On the career pitching numbers, John Cattanach posted a stronger line than Bob Blewett. John Cattanach posted stronger numbers in ERA (3.68 vs 4.82) and WHIP (1.000 vs 1.643). By the career numbers, John Cattanach 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.