This page explains how Dmitry Karagodsky (USATT# 195938)'s rating went from 1297 to 1257 at the Princeton Pong Open League event from 16 Jun 2015. 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.