This page explains how Hunlan Lin (USATT# 218055)'s rating went from 2011 to 2031 at the Spttc Saturday Night League event from 21 May 2022. 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.