Kevin Gregg vs. Ronald Herrera — Career Comparison

Looking at the career totals, Kevin Gregg and Ronald Herrera are fairly close on the surface numbers. Kevin Gregg posted stronger numbers in ERA (4.24 vs 6) and home runs allowed (0.97 per nine innings vs 3). Ronald Herrera had the advantage in WHIP (1.333 vs 1.420). By the career numbers, Kevin Gregg 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.