This page explains how Matthew Lehmann (USATT# 80125)'s rating went from 2438 to 2426 at the Motor City Open 2023 held on 6 May 2023 - 6 May 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.