Ryota Igarashi vs. Walter Thornton — Career Comparison

On the career pitching numbers, Walter Thornton posted a stronger line than Ryota Igarashi. Walter Thornton posted stronger numbers in ERA (4.18 vs 6.41) and WHIP (1.537 vs 1.849). By the career numbers, Walter Thornton 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.