This page explains how Jack Cheng (USATT# 270749)'s rating went from 1355 to 1352 at the HITTA Weekly League event from 19 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.