Impressive research but also not all that meaningful. For one, there's no basis of comparison. Who did Cleveland, Boston, LA play over that same time frame? Secondly, you use overall record of their opponents which doesn't really apply. A better method would be record at the time they played them. Thirdly, you don't take into account margin of victory/loss (i.e. pythagorean) The fact remains that they had a 29 - 12 record. No other mediocre team in the NBA came close to that.