Larry Dierker vs. Ed Siever — Career Comparison

On the career pitching numbers, Ed Siever posted a stronger line than Larry Dierker. Ed Siever posted stronger numbers in ERA (2.6 vs 3.31) and home runs allowed (0.14 per nine innings vs 0.71). By the career numbers, Ed Siever 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.