This page explains how David Roberts (USATT# 55604)'s rating went from 2119 to 2171 at the Spttc Saturday Night League event from 11 Jun 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.