This page explains how Peter Jie Yang (USATT# 78089)'s rating went from 2155 to 2151 at the TTA Adv League - SUNDAY event from 19 Sep 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.