John Firth vs. Mark Ross — Career Comparison

Looking at the career totals, John Firth and Mark Ross are fairly close on the surface numbers. Mark Ross posted stronger numbers in ERA (3.83 vs 8) and WHIP (1.087 vs 2.111). John Firth had the advantage in home runs allowed (0 per nine innings vs 1.06). By the career numbers, Mark Ross 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.