This page explains how Sarah Zhang (USATT# 1172448)'s rating went from 1872 to 1858 at the 2023 Junior National Team Trials – Part 1 held on 25 Feb 2023 - 28 Feb 2023. 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.