This page explains how Ryan Chen (USATT# 220128)'s rating went from 1205 to 1155 at the TTA Adv League - SUNDAY event from 3 Sep 2023. 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.