This page explains how Tom Sfera (USATT# 213359)'s rating went from 1181 to 1178 at the BTTC League event from 10 Oct 2023. 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.