This page explains how Kirchiro Toyoizumi (USATT# 215301)'s rating went from 1992 to 2002 at the Gold Coast TTC August 2023 Open held on 13 Aug 2023 - 13 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.