Walter Anderson vs. Casey Janssen — Career Comparison

Looking at the career totals, Walter Anderson and Casey Janssen are fairly close on the surface numbers. Walter Anderson posted stronger numbers in ERA (3.25 vs 3.63) and home runs allowed (0 per nine innings vs 0.88). Casey Janssen had the advantage in WHIP (1.238 vs 1.405). By the career numbers, Walter Anderson 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.