This page explains how Sean Sun (USATT# 280067)'s rating went from 43 to 41 at the GLTTC FRIDAY 730pm League event from 3 Nov 2023. 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.