Leo Kavanagh vs. Jack O'Brien — Career Comparison

On the career numbers, Jack O'Brien posted the stronger offensive profile against Leo Kavanagh. Jack O'Brien posted stronger numbers in OPS (.700 vs .606) and slugging (.369 vs .273). Leo Kavanagh had the advantage in batting average (.273 vs .266). By the career numbers, Jack O'Brien had the stronger overall case — though those totals don't account for the eras and run environments each player worked in.