Mule Armstrong vs. John Black — Career Comparison

Looking at the career totals, Mule Armstrong and John Black are closely matched on the surface stats. John Black posted stronger numbers in on-base percentage (.202 vs .125) and batting average (.151 vs .125). Mule Armstrong had the advantage in slugging (.250 vs .172). By the career numbers, John Black had the stronger overall case — though those totals don't account for the eras and run environments each player worked in.