This page explains how Will Baird (USATT# 3068)'s rating went from 1559 to 1540 at the 2017 SuperMicro US Nationals held on 3 Jul 2017 - 8 Jul 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.