This page explains how Ramon S. Giron (USATT# 9966)'s rating went from 1139 to 1184 at the 1997 Arizona Open held on - 23 Feb 1997. 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.