I run competitions, not in chess, but my question relates to chess Ranking systems, and will give an example of the issue I face. Game 1:
Alice scores 5, Bob 4, Chris 3.
I use the glicko-2 and elo Ranking system to break that down into two wins for Alice (over each other player) and one win for Bob (over Chris).
My problem is that if the result was:
Alice 10, Bob 4, Chris 3
That is a much bigger win for Alice, but the ranking system sees the result as no different from the first.
Has anyone come across a ranking system that takes into account margins of victory etc.?