Fernando Arroyo vs. Roy Witherup — Career Comparison

Looking at the career totals, Fernando Arroyo and Roy Witherup are fairly close on the surface numbers. Roy Witherup had the edge in home runs allowed (0.17 per nine innings vs 0.94). By the career numbers, Roy Witherup 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.