Mark Calvert vs. Robert Ray — Career Comparison

Looking at the career totals, Mark Calvert and Robert Ray are fairly close on the surface numbers. Robert Ray posted stronger numbers in ERA (4.18 vs 5.71) and WHIP (1.357 vs 1.933). Mark Calvert had the advantage in home runs allowed (0.78 per nine innings vs 1.29). By the career numbers, Robert Ray 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.