This page explains how Pratik Patel (USATT# 84333)'s rating went from 1639 to 1623 at the The Robert Bluestone Memorial Spring Open IV held on - 12 May 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.