John Callahan vs. Carlos Velazquez — Career Comparison

On the career pitching numbers, Carlos Velazquez posted a stronger line than John Callahan. Carlos Velazquez posted stronger numbers in ERA (2.58 vs 16.2) and WHIP (1.487 vs 3.000). By the career numbers, Carlos Velazquez 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.