This page explains how Sorin Astalus (USATT# 263903)'s rating went from 1680 to 1678 at the Matchpoint TTC Friday League event from 18 Mar 2022. The links below take you to pages that describe various aspects of the ratings processor.

The ratings 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.