This page explains how Debbie Malkin (USATT# 217578)'s rating went from 1299 to 1279 at the 2024 Fremont TTA Butterfly February Open held on 2 Feb 2024 - 4 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.