This page explains how Jeff Guttenberg (USATT# 270489)'s rating went from 1345 to 1341 at the Spttc Saturday Night League event from 17 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.