This page explains how Viktor Troppmann (USATT# 49728)'s rating went from 1500 to 1466 at the Huntsman World Senior Games held on - 7 Oct 2005. 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.