This page explains how Sean CHAO (USATT# 275864)'s rating went from 1553 to 1552 at the NJTTC Tuesday V League event from 13 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.