Jose Peña vs. Mason Thompson — Career Comparison

Looking at the career totals, Jose Peña and Mason Thompson are fairly close on the surface numbers. Jose Peña posted stronger numbers in ERA (4.97 vs 5.21) and WHIP (1.531 vs 1.667). Mason Thompson had the advantage in home runs allowed (0.87 per nine innings vs 1.28). By the career numbers, Jose Peña 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.