This page explains how Kevin Zhao (USATT# 277144)'s rating went from 1399 to 1389 at the NJTTC Tuesday V League event from 28 Mar 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.