This page explains how Patrick Keville (USATT# 77971)'s rating went from 1569 to 1544 at the LYTTC March Open held on 10 Mar 2018 - 11 Mar 2018. 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.