So first off, you don't have a 1.5 K/D. You have a 0.94 in QP and a 0.65 in survival. The difference between the two is huge. A 1.5 K/D player has refined their movement, aim, and decision making a lot more. https://www.destinykd.com/d2/xb/CanalianPhil Second, SBMM puts you in brackets where your skill essentially becomes the average (or close to it) in the match. So you thought you were improving, but in reality, you were put into an artificial environment where the top of the bell curve was shifted to place you at the apex (mean), rather than you being placed on a curve generated from the skill of the entire population. Strict (very important word there) SBMM literally provides a false sense of skill by doing this. That's just how it is. What does this mean? This means that in your skill bracket, you don't have to improve your aim, movement, awareness, tactics, etc. in order to consistently perform well within that bracket. And since you didn't have to improve due to the lack of any driving force or even an examples of better players in your matches, you likely didn't improve, even if you think you did. A driving force is required for improvement. This can be overcoming a challenge (a better player) or desire, and SBMM provides neither. No need to improve if you're all of a sudden the average or better, and there aren't gonna be 2.5 K/D players in the lobby of a 0.94. [spoiler]SBMM with more loose criteria is different. A 0.9 player may still be able to match a 1.2 or 1.3 if the criteria is loose enough. This would create a larger skill gap within matches and provide a much better frame of reference for determining one's own skill. Overcoming players who are slightly better than you is a driving force for improvement. Strict SBMM doesn't do this. [/spoiler] Third, in relation to my second point, CBMM places you along the curve exactly where you should be in relation to the rest of the population. As a 0.94, there are several thousand players who are better than you and CBMM will show that. It will not shift the mean in your favor. Long story short, SBMM in D2 was very strict and made you [i]think[/i] you improved, but you did not. Your stats show that. Sorry.