This page explains how Sorin Astalus (USATT# 263903)'s rating went from 1717 to 1678 at the Matchpoint TTC Friday League event from 28 Oct 2022. 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.