This page explains how Tahl Leibovitz (USATT# 59922)'s rating went from 2472 to 2551 at the Roslyn-Long Island Sports Center (LISC) League event from 1 Feb 2017. 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.