Justin Berg vs. Jordan Zimmermann — Career Comparison

Jordan Zimmermann built a career as a starting pitcher and Justin Berg as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jordan Zimmermann posted stronger surface numbers — ERA 4.07 and WHIP 1.258 compared to 4.08 and 1.484 for Justin Berg. By the career numbers, Jordan Zimmermann had the better of this cross-role comparison — though era context would sharpen the verdict.