This page explains how Richard E Rowland (USATT# 70415)'s rating went from 1458 to 1450 at the Statesville Table Tennis League event from 20 Apr 2015. 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.