This page explains how Sandeep Arneja (USATT# 926954)'s rating went from 1268 to 1248 at the BTTC League event from 18 Dec 2018. 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.