This page explains how Robert (Bobby) Ryberg (USATT# 43623)'s rating went from 1503 to 1500 at the 9th Annual Robert Bluestone Memorial held on 30 Oct 2021 - 30 Oct 2021. 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.