This page explains how Kit Yee Chu (USATT# 92109)'s rating went from 1399 to 1392 at the October Open held on - 19 Oct 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.