John Costello vs. Shae Simmons — Career Comparison

Looking at the career totals, John Costello and Shae Simmons are fairly close on the surface numbers. Shae Simmons posted stronger numbers in WHIP (1.139 vs 1.395) and home runs allowed (0.5 per nine innings vs 0.74). John Costello had the advantage in ERA (2.97 vs 3.5). By the career numbers, Shae Simmons 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.