This page explains how Sahil Puri (USATT# 87025)'s rating went from 1579 to 1581 at the Intermediate League event from 30 May 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.