This page explains how David A. Scarantino (USATT# 62535)'s rating went from 1623 to 1579 at the 83rd Michigan Championships held on 8 Apr 2017 - 9 Apr 2017. 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.