Jakob Junis vs. Jim Mertz — Career Comparison

Looking at the career totals, Jakob Junis and Jim Mertz are fairly close on the surface numbers. Jakob Junis posted stronger numbers in ERA (4.36 vs 4.63) and WHIP (1.298 vs 1.431). Jim Mertz had the advantage in home runs allowed (0.54 per nine innings vs 1.38). By the career numbers, Jakob Junis 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.