This page explains how Mikey Nguyen (USATT# 74077)'s rating went from 1378 to 1377 at the 22nd Annual Bernard Hock Open held on - 14 Oct 2007. 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.