This page explains how Hiroshi Koshimoto (USATT# 59772)'s rating went from 1572 to 1515 at the 2002 Meiklejohn Nat Sr TTT held on - 9 Jun 2002. 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.