This page explains how Christopher Joseph Salewski (USATT# 215042)'s rating went from 163 to 157 at the 2017 PA State Championships held on 8 Apr 2017 - 9 Apr 2017. 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.