This page explains how Abhishek Nath (USATT# 197946)'s rating went from 1223 to 1218 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 15 Sep 2015. 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.