This page explains how Maria Daniela Castillo Castillo (USATT# 92155)'s rating went from 2256 to 2219 at the September Newgy Akron Open (42 Points) held on - 27 Sep 2014. 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.