This page explains how Lily Lu (USATT# 222167)'s rating went from 1447 to 1448 at the 2021 Butterfly Florida Open held on 23 Jul 2021 - 25 Jul 2021. The links below take you to pages that describe various aspects of the ratings processor.

The ratings 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.