This page explains how John Edelson (USATT# 1179154)'s rating went from 1118 to 1030 at the 2023 Fall Tournament held on 6 Oct 2023 - 8 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.