Frank Francisco vs. Thomas Hatch — Career Comparison

On the career pitching numbers, Frank Francisco posted a stronger line than Thomas Hatch. Frank Francisco posted stronger numbers in ERA (4.01 vs 5.24) and WHIP (1.372 vs 1.621). By the career numbers, Frank Francisco 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.