Hal Gregg vs. Kirk McCaskill — Career Comparison

Looking at the career totals, Hal Gregg and Kirk McCaskill are fairly close on the surface numbers. Kirk McCaskill posted stronger numbers in ERA (4.12 vs 4.54) and WHIP (1.416 vs 1.509). Hal Gregg had the advantage in home runs allowed (0.45 per nine innings vs 0.8). By the career numbers, Kirk McCaskill 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.