This page explains how Yun Fan (USATT# 81398)'s rating went from 1691 to 1689 at the 6TH ANNUAL WA STATE CHAMPIONSHIPS & SPTTC NOVEMBER OPEN held on 5 Nov 2022 - 6 Nov 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.