Casey Janssen vs. Tom Metcalf — Career Comparison

Looking at the career totals, Casey Janssen and Tom Metcalf are fairly close on the surface numbers. Tom Metcalf had the edge in ERA (2.77 vs 3.63). By the career numbers, Tom Metcalf 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.