Ryan Borucki vs. Erwin Renfer — Career Comparison

Erwin Renfer built a career as a starting pitcher and Ryan Borucki as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ryan Borucki posted stronger surface numbers — ERA 4.28 and WHIP 1.311 compared to 6 and 1.333 for Erwin Renfer. By the career numbers, Ryan Borucki had the better of this cross-role comparison — though era context would sharpen the verdict.