This page explains how Alyssa Jian Kang (USATT# 212231)'s rating went from 1921 to 1914 at the Westchester March 2021 Little Open held on 27 Mar 2021 - 28 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.