Bob Blewett vs. Charlie Petty — Career Comparison

On the career pitching numbers, Bob Blewett posted a stronger line than Charlie Petty. Bob Blewett posted stronger numbers in ERA (4.82 vs 5.41) and WHIP (1.643 vs 1.763). By the career numbers, Bob Blewett 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.