Bob Greenwood vs. Dan Petry — Career Comparison

Looking at the career totals, Bob Greenwood and Dan Petry are fairly close on the surface numbers. Bob Greenwood had the edge in home runs allowed (0.69 per nine innings vs 0.94). By the career numbers, Bob Greenwood 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.