This page explains how Eugene Zhang (USATT# 215719)'s rating went from 1297 to 1228 at the MDTTC February Open held on 12 Feb 2022 - 13 Feb 2022. 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.