Joe Boyle vs. Dan Warthen — Career Comparison

Looking at the career totals, Joe Boyle and Dan Warthen are fairly close on the surface numbers. Dan Warthen had the edge in ERA (4.31 vs 4.98). By the career numbers, Dan Warthen 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.