This page explains how John Thach Tran (USATT# 60601)'s rating went from 2207 to 2217 at the San Diego Open 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.