Ryan Miller vs. Ariel Prieto — Career Comparison

Ariel Prieto built a career as a starting pitcher and Ryan Miller as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Ryan Miller posted stronger surface numbers — ERA 4.15 and WHIP 1.769 compared to 4.85 and 1.675 for Ariel Prieto. By the career numbers, Ryan Miller had the better of this cross-role comparison — though era context would sharpen the verdict.