Jharel Cotton vs. Bob Welch — Career Comparison

On the career pitching numbers, Bob Welch posted a stronger line than Jharel Cotton. Bob Welch posted stronger numbers in ERA (3.47 vs 4.5) and home runs allowed (0.78 per nine innings vs 1.59). By the career numbers, Bob Welch 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.