This page explains how Carlos Zeller (USATT# 65087)'s rating went from 1449 to 1435 at the 2023 Fall Tournament held on 6 Oct 2023 - 8 Oct 2023. 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.