We've played 16 games with Rudy Gobert starting, and 21 games where he was out or on a minutes restriction (the Rockets game). Below, I've broken out the offensive rating (points scored per 100 possessions), defensive rating (points allowed per 100 possessions), and the average rating of the opponents we've played. I've used basketball-reference's formula for calculating offensive and defensive ratings.
21 games without Rudy
Offensive Rating: 104.8 (14th)
Average Defensive Rating of Opponents played: 104.1
Net: +0.7
Defensive Rating: 109.1 (28th)
Average Offensive Rating of Opponents played: 105.6
Net: -3.5
This means we score 0.7 more points per 100 possessions against teams than they typically allow. And we let teams score 3.5 more points per 100 possessions than they typically score. Without Rudy, our offense is slightly above league average, but our defense is absolutely abysmal - among the worst in the NBA. All in all, we are getting outscored by an average of 2.8 points per 100 possessions without Rudy.
16 games with Rudy
Offensive Rating: 105.3 (11th)
Average Defensive Rating of Opponents played: 104.4
Net: +0.9
Defensive Rating: 100.4 (2nd!!!)
Average Offensive Rating of Opponents played: 104.1
Net: +3.7
With Rudy, we score 0.9 points more per 100 possessions against teams than they typically allow, and we let teams score 3.7 LESS points per 100 possessions than they typically score. In sum, we are outscoring opponents by an average of 4.6 points per 100 possessions with Rudy. Which is a staggering difference. Granted, there are other variables in play here - Favors's absence in more of the games without Rudy being the most notable. Nevertheless, in games with Rudy, relative to the quality of our opponent, we are doing 7.4 points better per 100 possessions. Our defense is almost dead last in the NBA without Rudy - with Rudy, it's behind only San Antonio.
That is a superstar-level impact.
21 games without Rudy
Offensive Rating: 104.8 (14th)
Average Defensive Rating of Opponents played: 104.1
Net: +0.7
Defensive Rating: 109.1 (28th)
Average Offensive Rating of Opponents played: 105.6
Net: -3.5
This means we score 0.7 more points per 100 possessions against teams than they typically allow. And we let teams score 3.5 more points per 100 possessions than they typically score. Without Rudy, our offense is slightly above league average, but our defense is absolutely abysmal - among the worst in the NBA. All in all, we are getting outscored by an average of 2.8 points per 100 possessions without Rudy.
16 games with Rudy
Offensive Rating: 105.3 (11th)
Average Defensive Rating of Opponents played: 104.4
Net: +0.9
Defensive Rating: 100.4 (2nd!!!)
Average Offensive Rating of Opponents played: 104.1
Net: +3.7
With Rudy, we score 0.9 points more per 100 possessions against teams than they typically allow, and we let teams score 3.7 LESS points per 100 possessions than they typically score. In sum, we are outscoring opponents by an average of 4.6 points per 100 possessions with Rudy. Which is a staggering difference. Granted, there are other variables in play here - Favors's absence in more of the games without Rudy being the most notable. Nevertheless, in games with Rudy, relative to the quality of our opponent, we are doing 7.4 points better per 100 possessions. Our defense is almost dead last in the NBA without Rudy - with Rudy, it's behind only San Antonio.
That is a superstar-level impact.