This page explains how Ruslan Mahas (USATT# 230232)'s rating went from 1188 to 1155 at the PTTC Saturday League event from 23 Nov 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.