This page explains how Praneeth Tummala (USATT# 92638)'s rating went from 630 to 622 at the ICC - Sunday Beginners League event from 22 Sep 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.