Thomas Hatch vs. Mickey Jannis — Career Comparison

On the career pitching numbers, Thomas Hatch posted a stronger line than Mickey Jannis. Thomas Hatch posted stronger numbers in ERA (5.24 vs 18.9) and WHIP (1.621 vs 3.600). By the career numbers, Thomas Hatch 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.