This page explains how Tri H. H. Dinh (USATT# 49435)'s rating went from 2202 to 2197 at the OCTTA BUTTERFLY FIRST ANNUAL SENIORS OPEN held on 6 Oct 2023 - 8 Oct 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.