If you're going to switch to something, it should be something reliable, worthwhile, and deserving of attention and respect.
The most accurate rating can be obtained based on tournaments in which players of roughly equal strength compete.
The Elo rating system is based on the assumption that the strength of each chess player can be represented as a probabilistic variable, following a normal distribution.
The calculation of a specific player's rating based on the results of a tournament is based on comparing the number of points they scored with the expected number of points, predicted based on their rating.
If, at the end of the tournament, the number of points scored is greater than the predicted value, then the rating of that player increases.
Everything is clearly explained in the links.
Well, about 20 people have joined. When vbn appears on the forum, I'll discuss the table with him. And to you, dear forum members, a question – what should we do with tournaments? In principle, awarding victory points with coefficients for a separate tournament is a good idea, but points should be deducted for a loss without coefficients =)
To get to that point, you need to sink to the bottom of the table, losing to everyone, even not the top players.