George Caster vs. Ethan Martin — Career Comparison

On the career pitching numbers, George Caster posted a stronger line than Ethan Martin. George Caster posted stronger numbers in ERA (4.54 vs 5.93) and WHIP (1.500 vs 1.682). By the career numbers, George Caster 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.