This page explains how Lyuzhao Wang (USATT# 230790)'s rating went from 1990 to 2014 at the Spttc Saturday Night League event from 2 Feb 2019. 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.