This page explains how Rob Roy Powell (USATT# 275639)'s rating went from 1225 to 1192 at the West Jersey Table Tennis Club League event from 21 Dec 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.