This page explains how David Roberts (USATT# 55604)'s rating went from 2185 to 2217 at the Spttc Saturday Night League event from 2 Feb 2019. 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.