This page explains how Tim Poon (USATT# 229730)'s rating went from 672 to 709 at the ICC - Sunday Beginners League event from 1 Aug 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.