This page explains how Henry C Lou (USATT# 278365)'s rating went from 1140 to 1062 at the Spttc Saturday Junior League event from 3 Jun 2023. 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.