This page explains how Isabella Luo (USATT# 267433)'s rating went from 1838 to 1820 at the TTA Adv League - SUNDAY event from 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.