DJ Johnson vs. George Rettger — Career Comparison

Looking at the career totals, DJ Johnson and George Rettger are fairly close on the surface numbers. George Rettger had the edge in ERA (3.67 vs 4.54). By the career numbers, George Rettger 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.