Tommy Doyle vs. Zac Grotz — Career Comparison

Looking at the career totals, Tommy Doyle and Zac Grotz are fairly close on the surface numbers. Zac Grotz posted stronger numbers in ERA (7.3 vs 8.31) and home runs allowed (1.46 per nine innings vs 1.73). Tommy Doyle had the advantage in WHIP (1.769 vs 1.824). By the career numbers, Zac Grotz 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.