This page explains how Keith Heintzleman (USATT# 1168976)'s rating went from 1667 to 1908 at the Davison Athletic Club February Open held on 19 Feb 2022 - 19 Feb 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.