This page explains how John Mc Dermott (USATT# 93518)'s rating went from 2273 to 2271 at the Matchpoint TTC Friday League event from 25 Jun 2021. 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.