This page explains how Carlos Zeller (USATT# 65087)'s rating went from 1415 to 1372 at the 2024 Butterfly March Tournament held on 29 Mar 2024 - 31 Mar 2024. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.