This page explains how Adam Mertz (USATT# 220127)'s rating went from 1423 to 1397 at the PPC 2023 Fall Open held on 7 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.