Doug Fister vs. Ed Summers — Career Comparison

On the career pitching numbers, Ed Summers posted a stronger line than Doug Fister. Ed Summers posted stronger numbers in ERA (2.42 vs 3.72) and WHIP (1.152 vs 1.267). By the career numbers, Ed Summers 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.