John Doyle vs. Mike Perez — Career Comparison

Looking at the career totals, John Doyle and Mike Perez are fairly close on the surface numbers. John Doyle posted stronger numbers in ERA (2.63 vs 3.56) and home runs allowed (0 per nine innings vs 0.68). Mike Perez had the advantage in WHIP (1.376 vs 1.833). By the career numbers, John 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.