Rube Fischer vs. Dae-Sung Koo — Career Comparison

Rube Fischer built a career as a starting pitcher and Dae-Sung Koo as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Dae-Sung Koo posted stronger surface numbers — ERA 3.91 and WHIP 1.565 compared to 5.1 and 1.667 for Rube Fischer. By the career numbers, Dae-Sung Koo had the better of this cross-role comparison — though era context would sharpen the verdict.