Tommy Doyle vs. Hector Perez — Career Comparison

On the career pitching numbers, Tommy Doyle posted a stronger line than Hector Perez. Tommy Doyle posted stronger numbers in ERA (8.31 vs 13.5) and WHIP (1.769 vs 5.000). By the career numbers, Tommy Doyle 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.