This page explains how Houshang Bozorgzadeh (USATT# 4400)'s rating went from 2022 to 2025 at the 34th St. Jospeh Valley Open/Al held on - 10 May 1998. 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.