This page explains how Val Pierre Vallat (USATT# 271821)'s rating went from 1337 to 1268 at the Central Carolinas Super League event from 21 Oct 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.