This page explains how Lily Zhang (USATT# 31126)'s rating went from 960 to 955 at the Concord Cup Youth TT Tournamen held on - 24 Oct 2004. 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.