This page explains how Jinchang Chen (USATT# 96180)'s rating went from 1856 to 1850 at the TTA Ping Pong Diplomacy Tournament held on 13 Aug 2022 - 14 Aug 2022. 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.