This page explains how Grant Brown (USATT# 43549)'s rating went from 1640 to 1646 at the 2013 Pacific Rim Open held on - 3 Nov 2013. 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.