Jose Alvarez vs. Jack Leiper — Career Comparison

Looking at the career totals, Jose Alvarez and Jack Leiper are fairly close on the surface numbers. Jose Alvarez posted stronger numbers in ERA (3.47 vs 5.4) and WHIP (1.367 vs 1.778). Jack Leiper had the advantage in home runs allowed (0.6 per nine innings vs 0.83). By the career numbers, Jose Alvarez 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.