This page explains how Don Ray Hamilton (USATT# 27945)'s rating went from 2053 to 2038 at the 2022 US National Table Tennis Championships Ohio State Qualification Tournament held on 25 Feb 2022 - 27 Feb 2022. 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.