This page explains how Carlos Zeller (USATT# 65087)'s rating went from 1830 to 1741 at the Robopong August 2013 BTTC Open held on - 4 Aug 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.