This page explains how Li Chen (USATT# 64486)'s rating went from 2166 to 2160 at the Wing Hop Fung Washington Cup Open held on - 28 Apr 2013. 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.