This page explains how Janice Cheng (USATT# 214589)'s rating went from 1131 to 1123 at the Google Mountain View Table Tennis League event from 31 Dec 2016. 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.