This page explains how Rob Roy Powell (USATT# 275639)'s rating went from 1415 to 1341 at the West Jersey Table Tennis Club League event from 21 Sep 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.