This page explains how Luc Longpre (USATT# 80772)'s rating went from 1479 to 1450 at the 7th Annual 2015 Fall Open held on - 21 Nov 2015. 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.