This page explains how Sean Masterson (USATT# 77070)'s rating went from 1477 to 1428 at the LATTA Washington Cup held on - 13 Nov 2011. 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.