This page explains how Nathan A Crabtree (USATT# 95450)'s rating went from 1641 to 1677 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.