This page explains how Evelyn Yuan (USATT# 230220)'s rating went from 621 to 1203 at the NJTTC Friday League event from 14 Feb 2020. 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.