Hal Deviney vs. Ryan Mattheus — Career Comparison

Looking at the career totals, Hal Deviney and Ryan Mattheus are fairly close on the surface numbers. Ryan Mattheus posted stronger numbers in ERA (3.72 vs 15) and WHIP (1.462 vs 3.000). Hal Deviney had the advantage in home runs allowed (0 per nine innings vs 0.59). By the career numbers, Ryan Mattheus 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.