This page explains how Bowen Xie (USATT# 279034)'s rating went from 414 to 409 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 4 Nov 2023. 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.