This page explains how Marshall Young (USATT# 21892)'s rating went from 1747 to 1748 at the 2021 US National TT Championships North Carolina State Qualifier held on 13 Mar 2021 - 14 Mar 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.