Frank Blake vs. John Mitchell — Career Comparison

On the career pitching numbers, Frank Blake posted a stronger line than John Mitchell. Frank Blake posted stronger numbers in ERA (2.26 vs 4.35) and WHIP (1.162 vs 1.550). By the career numbers, Frank Blake 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.