Tommy John vs. Jack Killilay — Career Comparison

Looking at the career totals, Tommy John and Jack Killilay are fairly close on the surface numbers. Tommy John posted stronger numbers in ERA (3.34 vs 3.54) and WHIP (1.304 vs 1.656). Jack Killilay had the advantage in home runs allowed (0 per nine innings vs 0.58). By the career numbers, Tommy John 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.