This page explains how Frank A. Roth (USATT# 9592)'s rating went from 1679 to 1690 at the Sportsfest XV 2-Player Team & Top Gun Singles Open held on - 16 Jul 2011. 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.