This page explains how David T Lee (USATT# 272613)'s rating went from 1437 to 1439 at the Westchester March 2023 Open held on 25 Mar 2023 - 26 Mar 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.