This page explains how Levi Leder (USATT# 94823)'s rating went from n/a to 611 at the NYITTC November 2014 Open held on - 2 Nov 2014. 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.