This page explains how Collin Liou (USATT# 231040)'s rating went from 1001 to 960 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 18 Feb 2020. 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.