This page explains how Vivaan Chhabra (USATT# 217772)'s rating went from 846 to 847 at the Westchester 2017 October Open held on 28 Oct 2017 - 29 Oct 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.