This page explains how Yuxian Zhang (USATT# 270477)'s rating went from 1237 to 1197 at the Central Carolinas Super League event from 12 Aug 2021. 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.