This page explains how Alona Lakhmaniuk (USATT# 1181532)'s rating went from 672 to 667 at the Lob Palace December Open 2023 held on 9 Dec 2023 - 9 Dec 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.