This page explains how Makarios Moussa (USATT# 201836)'s rating went from 1570 to 1562 at the WCTTA Saturday League event from 14 May 2016. 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.