This page explains how Stephen Yatvitskiy (USATT# 94739)'s rating went from 1699 to 1657 at the Westchester 2016 January Open B held on 30 Jan 2016 - 31 Jan 2016. 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.