Bill Hallahan vs. Matt Manning — Career Comparison

Looking at the career totals, Bill Hallahan and Matt Manning are fairly close on the surface numbers. Bill Hallahan posted stronger numbers in ERA (4.03 vs 4.43) and home runs allowed (0.37 per nine innings vs 1.06). Matt Manning had the advantage in WHIP (1.287 vs 1.504). By the career numbers, Bill Hallahan 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.