This page explains how Nir Cohen (USATT# 79112)'s rating went from 1961 to 1962 at the Schaumburg Spring Open held on - 12 May 2012. 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.