This page explains how Steve Glasberg (USATT# 263095)'s rating went from 1177 to 1167 at the TT&M Friday Night Butterfly League event from 9 Apr 2021. 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.