This page explains how Ion Diaconescu (USATT# 198078)'s rating went from 1534 to 1513 at the Central Carolinas Super League event from 29 Jul 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.