This page explains how Robert (Bobby) Ryberg (USATT# 43623)'s rating went from 1556 to 1442 at the 2022 Arizona Open & Giant Round Robin held on 24 Sep 2022 - 25 Sep 2022. 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.