Don Kirkwood vs. Al Sima — Career Comparison

Looking at the career totals, Don Kirkwood and Al Sima are fairly close on the surface numbers. Don Kirkwood had the edge in ERA (4.37 vs 4.61). By the career numbers, Don Kirkwood 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.