1) Read my post carefully.
2) Read and understand K0Lb@zzeR's post, where he provided the formula.
3) Download the attached file, enter different numbers, and observe the pattern.
By performing these three simple actions, you can understand how the rating system works.
In reality, it's quite simple. Only player ratings have an impact. All other features only create an imbalance.
And it's very easy to calculate...