This page explains how Hagai Golan (USATT# 62221)'s rating went from 1896 to 1889 at the Club JOOLA March Open held on - 22 Mar 2009. 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.