This page explains how Jeffrey Baker (USATT# 1171565)'s rating went from 931 to 889 at the Westchester November 2023 Open held on 18 Nov 2023 - 19 Nov 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.