Mike Cosgrove vs. Charles Jamerson — Career Comparison

Looking at the career totals, Mike Cosgrove and Charles Jamerson are fairly close on the surface numbers. Mike Cosgrove posted stronger numbers in ERA (4.03 vs 18) and WHIP (1.544 vs 4.000). Charles Jamerson had the advantage in home runs allowed (0 per nine innings vs 0.43). By the career numbers, Mike Cosgrove 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.