yes, but so did your opponent and you both had awful medium rebounding rating. You did slightly better on rebounding, 22/62 possible offensive boards, compared to 22/81 for them. If you look more carefully at the boxscore, I think you can see how the new engine is working and the reason you did better on rebounding is that your PF and C were better rebounders, as they received a larger percentage of the rebounds than they should have given an even matchup. All in all the difference in rebounding rate was only 6 offensive boards, and its easy to imagine that is just up to chance.