This page explains how Hunlan Lin (USATT# 218055)'s rating went from 1897 to 1980 at the 2023 Joola LA Open held on 12 Aug 2023 - 13 Aug 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.