This page explains how Sergey Semenov (USATT# 97877)'s rating went from 1636 to 1610 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 4 May 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.