Keith Atherton vs. Agustin Montero — Career Comparison

Looking at the career totals, Keith Atherton and Agustin Montero are fairly close on the surface numbers. Keith Atherton posted stronger numbers in ERA (3.99 vs 5.14) and home runs allowed (1.19 per nine innings vs 1.93). Agustin Montero had the advantage in WHIP (1.214 vs 1.407). By the career numbers, Keith Atherton 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.