John Callahan vs. Bill Evans — Career Comparison

On the career pitching numbers, Bill Evans posted a stronger line than John Callahan. Bill Evans posted stronger numbers in ERA (4.98 vs 16.2) and WHIP (1.708 vs 3.000). By the career numbers, Bill Evans 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.