Bob Kelly vs. Jose Rosado — Career Comparison

Looking at the career totals, Bob Kelly and Jose Rosado are fairly close on the surface numbers. Jose Rosado posted stronger numbers in ERA (4.27 vs 4.5) and WHIP (1.331 vs 1.456). Bob Kelly had the advantage in home runs allowed (0.7 per nine innings vs 1.07). By the career numbers, Jose Rosado 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.