This page explains how Randall Medcalf (USATT# 64482)'s rating went from 1844 to 1851 at the HITTA Weekly League event from 21 Nov 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.