This page explains how Mark Ben Weber (USATT# 10964)'s rating went from 1889 to 1856 at the 2002 Indianapolis Summer Open held on - 11 Aug 2002. 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.