This page explains how Yi Ma (USATT# 84273)'s rating went from 1852 to 1819 at the TTA Adv League - SUNDAY event from 26 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.