John Singleton vs. Mike Vasil — Career Comparison

John Singleton built a career as a starting pitcher and Mike Vasil as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mike Vasil posted stronger surface numbers — ERA 2.5 and WHIP 1.297 compared to 5.9 and 1.774 for John Singleton. By the career numbers, Mike Vasil had the better of this cross-role comparison — though era context would sharpen the verdict.