This page explains how Daniel Petterson (USATT# 72857)'s rating went from 1491 to 1443 at the 2016 Muskegon Open held on 14 Apr 2016 - 16 Apr 2016. 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.