This page explains how Fritz Achhorner (USATT# 272016)'s rating went from 1395 to 1389 at the Northside TTC - Longmont Community Tournament held on 8 Apr 2023 - 8 Apr 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.