This page explains how Thomas Shieh (USATT# 17171)'s rating went from 1608 to 1576 at the AGBU TTT held on - 30 Aug 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.