James McDonald vs. Greg Weissert — Career Comparison

James McDonald built a career as a starting pitcher and Greg Weissert as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Greg Weissert led in walk avoidance (BB%+ 123 vs 75), run prevention (ERA+ 131 vs 94), and home run suppression (HR9+ 117 vs 82). James McDonald held the edge in strikeout rate (K%+ 107 vs 89). Role difference aside, Greg Weissert holds a clear edge on every meaningful shared measure.