This page explains how Clem Volpert (USATT# 38067)'s rating went from 1355 to 1343 at the AITTA event from 15 Dec 2013. 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.