This page explains how Han Xiao (USATT# 1819)'s rating went from 1596 to 1591 at the NTTC April Open held on - 14 Apr 1996. 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.