This page explains how Daniel Rosenfeld (USATT# 89181)'s rating went from 1021 to 1032 at the Westchester 2013 January Open held on - 27 Jan 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.