This page explains how Abhinav Gunda (USATT# 89194)'s rating went from 193 to 170 at the Beginner League event from 11 Sep 2013. 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.