This page explains how Carmen Yu (USATT# 217532)'s rating went from 1810 to 1850 at the 2021 PA State TT Championships held on 30 Apr 2021 - 1 May 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.