Kevin Coffman vs. Roy S. Williams — Career Comparison

Looking at the career totals, Kevin Coffman and Roy S. Williams are fairly close on the surface numbers. Roy S. Williams posted stronger numbers in ERA (5.69 vs 6.42) and WHIP (1.571 vs 1.952). Kevin Coffman had the advantage in home runs allowed (0.41 per nine innings vs 0.77). By the career numbers, Roy S. Williams 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.