This page explains how Logan Herman (USATT# 94695)'s rating went from 1590 to 1521 at the 2015 Millcreek Open held on - 18 Oct 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.