Steve Foster vs. Esmerling Vasquez — Career Comparison

On the career pitching numbers, Steve Foster posted a stronger line than Esmerling Vasquez. Steve Foster posted stronger numbers in ERA (2.41 vs 4.86) and WHIP (1.193 vs 1.559). By the career numbers, Steve Foster 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.