Adam Peterson vs. Mike Walker — Career Comparison

Mike Walker built a career as a starting pitcher and Adam Peterson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Walker posted stronger surface numbers — ERA 7.36 and WHIP 2.250 compared to 16.88 and 3.750 for Adam Peterson. By the career numbers, Mike Walker had the better of this cross-role comparison — though era context would sharpen the verdict.