This page explains how Bert Wessling (USATT# 1166495)'s rating went from 663 to 660 at the 2024 HITTA President's Day Tournament held on 18 Feb 2024 - 18 Feb 2024. 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.