This page explains how Xinran Tao (USATT# 95859)'s rating went from 1811 to 1803 at the Mastiff Table Tennis Club event from 11 Jan 2020. 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.