This page explains how Mohamed Hamdouchi (USATT# 1165154)'s rating went from 1209 to 1156 at the SpinBlock Monday Night League event from 3 Feb 2020. 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.