This page explains how Han Xiao (USATT# 1819)'s rating went from 2044 to 2028 at the MDTTC January Open held on - 18 Jan 1998. 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.