This page explains how L.A. Johnston (USATT# 10960)'s rating went from 1335 to 1340 at the Pensacola Summer Open held on - 22 Aug 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.