This page explains how Michael Peng (USATT# 202807)'s rating went from 1956 to 1941 at the TTA Adv League - SUNDAY event from 22 Aug 2021. 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.