This page explains how Alok Shankar (USATT# 89316)'s rating went from 1254 to 1243 at the 2013 SPTTC August Open held on - 11 Aug 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.