This page explains how Jim Weisbecker (USATT# 28820)'s rating went from 1543 to 1449 at the Sunburst Tour 2005 Event #1 held on - 22 Jan 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.