This page explains how Tarun Tandon (USATT# 74872)'s rating went from 1994 to 1981 at the SVTTC Sunday U2000 event from 13 Nov 2011. 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.