This page explains how Carlos I. I. Estrada (USATT# 39831)'s rating went from 1970 to 1993 at the 2022 US National TT Championships Southeast Regional Qualifier held on 27 May 2022 - 29 May 2022. 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.