Mark Johnson vs. Alex Singleton — Career Comparison

Mark Johnson built a career as a starting pitcher and Alex Singleton as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Alex Singleton posted stronger surface numbers — ERA 6.75 and WHIP 2.250 compared to 7.5 and 1.750 for Mark Johnson. By the career numbers, Alex Singleton had the better of this cross-role comparison — though era context would sharpen the verdict.