This page explains how Robert A. Kyker (USATT# 7485)'s rating went from 1669 to 1643 at the Sooner State Games held on - 23 Jan 2010. 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.