This page explains how Charnchai Tangpong (USATT# 4402)'s rating went from 2091 to 2085 at the Buckeye Open held on - 14 Mar 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.