This page explains how Larry Schumer (USATT# 265244)'s rating went from 1317 to 1277 at the Mastiff Table Tennis Club event from 14 Dec 2019. 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.