Johnny Welch vs. Bruce Zimmermann — Career Comparison

Looking at the career totals, Johnny Welch and Bruce Zimmermann are fairly close on the surface numbers. Johnny Welch posted stronger numbers in ERA (4.66 vs 5.64) and home runs allowed (0.5 per nine innings vs 2.3). Bruce Zimmermann had the advantage in WHIP (1.460 vs 1.538). By the career numbers, Johnny 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.