This page explains how Ronald Spencer (USATT# 48061)'s rating went from 2086 to 2046 at the 2006 San Diego Open held on - 7 May 2006. 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.