Juan Alvarez vs. Zack Thompson — Career Comparison

On the career pitching numbers, Zack Thompson posted a stronger line than Juan Alvarez. Zack Thompson posted stronger numbers in ERA (4.5 vs 5.22) and WHIP (1.356 vs 1.657). By the career numbers, Zack 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.