This page explains how Hayah Zabana (USATT# 16857)'s rating went from 834 to 879 at the 1998 Southern Open held on - 25 Oct 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.