Ralph Caldwell vs. Bob Vail — Career Comparison

Looking at the career totals, Ralph Caldwell and Bob Vail are fairly close on the surface numbers. Ralph Caldwell posted stronger numbers in ERA (4.2 vs 6) and WHIP (1.413 vs 1.467). Bob Vail had the advantage in home runs allowed (0 per nine innings vs 0.24). By the career numbers, Ralph Caldwell 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.