This page explains how Jonathan Wu (USATT# 275408)'s rating went from 1226 to 1213 at the Spttc Saturday Junior League event from 12 Aug 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.