This page explains how Edward K. K. Suen (USATT# 45353)'s rating went from 1639 to 1627 at the Spttc Saturday Night League event from 8 Oct 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.