Calvin Jones vs. Frank Wills — Career Comparison

On the career pitching numbers, Calvin Jones posted a stronger line than Frank Wills. Calvin Jones posted stronger numbers in ERA (4.33 vs 5.06) and home runs allowed (0.67 per nine innings vs 1.03). By the career numbers, Calvin Jones 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.