Calvin Jones vs. Oswaldo Mairena — Career Comparison

On the career pitching numbers, Calvin Jones posted a stronger line than Oswaldo Mairena. Calvin Jones posted stronger numbers in ERA (4.33 vs 6.06) and WHIP (1.528 vs 1.654). 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.