Al Piechota vs. Zach Thompson — Career Comparison

Looking at the career totals, Al Piechota and Zach Thompson are fairly close on the surface numbers. Zach Thompson posted stronger numbers in ERA (4.36 vs 5.66) and WHIP (1.383 vs 1.774). Al Piechota had the advantage in home runs allowed (0.87 per nine innings vs 1.12). By the career numbers, Zach Thompson 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.