This page explains how Abdul Chaudhry (USATT# 271306)'s rating went from 148 to 140 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 7 Sep 2021. 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.