Jim Peterson vs. Don Songer — Career Comparison

On the career pitching numbers, Don Songer posted a stronger line than Jim Peterson. Don Songer posted stronger numbers in ERA (3.38 vs 5.27) and WHIP (1.493 vs 1.665). By the career numbers, Don Songer 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.