This page explains how Michael Sun (USATT# 273013)'s rating went from 1859 to 1851 at the Westchester 2024 March Open held on 30 Mar 2024 - 31 Mar 2024. 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.