How the Wonders of the First Elo ladder works

The Elo formula behind the Wonders of the First ladder.

Rating

Every player starts at 1,500. Ratings move on the Elo 400-point scale after each reported match. K is 12 at 2,100+, 40 for the first 20 matches, 20 otherwise. Formula version 2.0.0.

Scoring

A win scores 1, a draw 0.5, a loss 0. Matches come from public event results.