This page explains how Vidyadhara Gubbi (USATT# 74807)'s rating went from 1515 to 1490 at the Intermediate League event from 11 Jun 2009. 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.