This page explains how Daniel Green (USATT# 6231)'s rating went from 2056 to 2038 at the Westchester 2013 April Open held on - 28 Apr 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.