This page explains how Shaoqing Luo (USATT# 275206)'s rating went from 44 to 39 at the Swan Sunday League event from 11 Dec 2022. 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.