This page explains how Khaldun Ferreira (USATT# 271058)'s rating went from 761 to 690 at the LYTTC October Open 2022 held on 8 Oct 2022 - 9 Oct 2022. 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.