John Halama vs. Jacob Lopez — Career Comparison

Looking at the career totals, John Halama and Jacob Lopez are fairly close on the surface numbers. Jacob Lopez posted stronger numbers in ERA (4.21 vs 4.65) and WHIP (1.266 vs 1.474). John Halama had the advantage in home runs allowed (1.12 per nine innings vs 1.33). By the career numbers, Jacob Lopez 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.