This page explains how Songtao Feng (USATT# 266289)'s rating went from 2152 to 2126 at the Penn State Table Tennis Club event from 21 Nov 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.