This page explains how Yury Semikhatsky (USATT# 214774)'s rating went from 971 to 967 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 17 Jan 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.