This page explains how Michael S. S. Harris (USATT# 32157)'s rating went from 1710 to 1689 at the Alabama State Championships 2015 held on - 16 May 2015. 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.