Simple Grudge Calculator created by u/annonym

Maximum change in rating: K =
P1 started with points
P2 started with points
P1 against P2 in a grudge match
Iteration 1:
Iteration 2:
Iteration 3:
Iteration 4:
Iteration 5:

This calculator is created on 25 Mar 2022 based on the formula & examples from Wikipedia.