This page explains how Richard E Rowland (USATT# 70415)'s rating went from 1583 to 1548 at the Mooresville Table Tennis League event from 14 Sep 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.