Jose Alvarez vs. Ethan Roberts — Career Comparison

On the career pitching numbers, Jose Alvarez posted a stronger line than Ethan Roberts. Jose Alvarez posted stronger numbers in ERA (3.47 vs 4.98) and WHIP (1.367 vs 1.592). 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.