This page explains how Sarthak Pradhan (USATT# 98257)'s rating went from 54 to 30 at the ICC - Sunday Beginners League event from 17 Nov 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.