This page explains how Chad Su (USATT# 86446)'s rating went from 1878 to 1880 at the Spttc Saturday Night League event from 14 Oct 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.