This page explains how Alan Lin (USATT# 61647)'s rating went from 1990 to 2002 at the LYTTC Friday Pro League event from 9 Aug 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.