This page explains how Gareth De Silva (USATT# 272406)'s rating went from 1303 to 1291 at the Spttc Saturday Night League event from 10 Jun 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.