This page explains how John Shen (USATT# 273516)'s rating went from 1825 to 1805 at the GLTTC FRIDAY 730pm League event from 8 Sep 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.