Rube Fischer vs. Tom Koehler — Career Comparison

Looking at the career totals, Rube Fischer and Tom Koehler are fairly close on the surface numbers. Tom Koehler posted stronger numbers in ERA (4.39 vs 5.1) and WHIP (1.414 vs 1.667). Rube Fischer had the advantage in home runs allowed (0.47 per nine innings vs 1.08). By the career numbers, Tom Koehler 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.