This page explains how Kenny Duong Au (USATT# 223163)'s rating went from 1984 to 1974 at the ICC - Advanced League event from 12 Aug 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.