Bobby Castillo vs. Don Williams — Career Comparison

On the career pitching numbers, Bobby Castillo posted a stronger line than Don Williams. Bobby Castillo posted stronger numbers in ERA (3.94 vs 10.38) and WHIP (1.431 vs 3.231). By the career numbers, Bobby Castillo 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.