This page explains how Ion Diaconescu (USATT# 198078)'s rating went from 1647 to 1630 at the Central Carolinas Super League event from 7 Jul 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.