This page explains how Charnchai Tangpong (USATT# 4402)'s rating went from 2080 to 2059 at the Macy Block Open held on - 24 Aug 2003. 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.