This page explains how PO-YEH CHEN (USATT# 276346)'s rating went from 243 to 217 at the ICC - Sunday Beginners League event from 19 May 2024. 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.