This page explains how Joon Lee (USATT# 216874)'s rating went from 954 to 953 at the 32nd Annual Bernard Hock Open held on 14 Oct 2017 - 14 Oct 2017. 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.