This page explains how Gun Naung Sumlut (USATT# 89835)'s rating went from 611 to 610 at the Intermediate League event from 27 Sep 2012. 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.