John McDonald vs. Bob Miller — Career Comparison

Looking at the career totals, John McDonald and Bob Miller are fairly close on the surface numbers. Bob Miller posted stronger numbers in ERA (4.29 vs 9) and WHIP (1.429 vs 2.333). John McDonald had the advantage in home runs allowed (0 per nine innings vs 0.33). By the career numbers, Bob Miller 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.