This page explains how Kai Zhang (USATT# 86637)'s rating went from 2640 to 2630 at the 24th FIT Open held on 12 Mar 2016 - 13 Mar 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.