Roland de la Maza vs. Willie Mills — Career Comparison

Looking at the career totals, Roland de la Maza and Willie Mills are fairly close on the surface numbers. Roland de la Maza posted stronger numbers in ERA (4.5 vs 8.44) and WHIP (1.000 vs 1.563). Willie Mills had the advantage in home runs allowed (1.13 per nine innings vs 4.5). By the career numbers, Roland de la Maza 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.