This page explains how Yueming Xiao (USATT# 18898)'s rating went from 2077 to 2058 at the Indiana State Closed Champions held on - 24 Apr 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.