This page explains how Kai Zhang (USATT# 86637)'s rating went from 2708 to 2697 at the Westchester 2014 June Open held on - 29 Jun 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.