Jason Grilli vs. John Harper — Career Comparison

John Harper built a career as a starting pitcher and Jason Grilli as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jason Grilli posted stronger surface numbers — ERA 4.22 and WHIP 1.405 compared to 4.67 and 1.421 for John Harper. By the career numbers, Jason Grilli had the better of this cross-role comparison — though era context would sharpen the verdict.