This page explains how Nikhil Chawla (USATT# 256412)'s rating went from 29 to 21 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 30 Apr 2019. 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.