This page explains how Dharmaraj Coona (USATT# 85618)'s rating went from 1849 to 1817 at the 2014 Decatur Open held on - 16 Aug 2014. 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.