This page explains how Lyonnel Jr. Eugene (USATT# 269801)'s rating went from 304 to 323 at the LYTTC Giant RR - July 2021 held on 17 Jul 2021 - 18 Jul 2021. 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.