This page explains how Stephen Finn (USATT# 270149)'s rating went from n/a to 633 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.