This page explains how Joe Pelican (USATT# 214906)'s rating went from 1684 to 1679 at the 2019 Valley of the Sun Open held on 7 Dec 2019 - 8 Dec 2019. 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.