Mark Kolozsvary vs. John Simmons — Career Comparison

Looking at the career totals, Mark Kolozsvary and John Simmons are closely matched on the surface stats. Mark Kolozsvary posted stronger numbers in OPS (.688 vs .513) and slugging (.450 vs .215). John Simmons had the advantage in on-base percentage (.298 vs .238). By the career numbers, Mark Kolozsvary had the stronger overall case — though those totals don't account for the eras and run environments each player worked in.