This page explains how Jack Lee (USATT# 85545)'s rating went from 1817 to 1809 at the 2018 Arnold Table Tennis Challenge held on 2 Mar 2018 - 4 Mar 2018. 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.