Michael Mercado vs. Blake Treinen — Career Comparison

Michael Mercado built a career as a starting pitcher and Blake Treinen as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Blake Treinen posted stronger surface numbers — ERA 2.9 and WHIP 1.277 compared to 11.81 and 2.250 for Michael Mercado. By the career numbers, Blake Treinen had the better of this cross-role comparison — though era context would sharpen the verdict.