This page explains how Dalton Banh (USATT# 77885)'s rating went from 1172 to 1143 at the 2009 Northridge Open held on - 20 Sep 2009. 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.