This page explains how Bill Maguire (USATT# 19763)'s rating went from 1573 to 1573 at the SATTA League event from 10 Jan 2020. 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.