Frank Bates vs. Keury Mella — Career Comparison

On the career pitching numbers, Frank Bates posted a stronger line than Keury Mella. Frank Bates posted stronger numbers in ERA (6.33 vs 7.22) and home runs allowed (0.28 per nine innings vs 2.51). By the career numbers, Frank Bates 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.