This page explains how Harry Karr (USATT# 272618)'s rating went from 1209 to 1203 at the Central Carolinas Super League event from 23 Feb 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.