Tim Herrin vs. Joel Johnston — Career Comparison

On the career pitching numbers, Tim Herrin posted a stronger line than Joel Johnston. Tim Herrin posted stronger numbers in ERA (3.57 vs 4.31) and home runs allowed (0.66 per nine innings vs 1.05). By the career numbers, Tim Herrin 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.