This page explains how Yat Long Rain Cheng (USATT# 1180566)'s rating went from 1392 to 1167 at the GLTTC FRIDAY 730pm League event from 10 Nov 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.