Jim Pena vs. Scott Service — Career Comparison

Looking at the career totals, Jim Pena and Scott Service are fairly close on the surface numbers. Jim Pena posted stronger numbers in ERA (3.48 vs 4.99) and home runs allowed (0.82 per nine innings vs 1.21). Scott Service had the advantage in WHIP (1.549 vs 1.682). By the career numbers, Jim Pena 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.