John Costello vs. Fred Rath Jr. — Career Comparison

Looking at the career totals, John Costello and Fred Rath Jr. are fairly close on the surface numbers. Fred Rath Jr. posted stronger numbers in ERA (1.69 vs 2.97) and home runs allowed (0 per nine innings vs 0.74). John Costello had the advantage in WHIP (1.395 vs 1.500). By the career numbers, Fred Rath Jr. 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.