This page explains how Rigel Galgana (USATT# 1165491)'s rating went from 1614 to 1602 at the Westford TTC February 2023 Open held on 5 Feb 2023 - 5 Feb 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.