This page explains how Richard A. Dewitt (USATT# 47261)'s rating went from 2237 to 2206 at the 2010 DSP/NYTTF Open Series held on - 25 Apr 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.