This page explains how Chuo-Han Lee (USATT# 214617)'s rating went from 1281 to 1271 at the Swan Sunday League event from 24 Mar 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.