This page explains how Carlos Zeller (USATT# 65087)'s rating went from 1856 to 1856 at the 2007 Sarasota TTC Spring Open held on - 14 Apr 2007. 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.