This page explains how Henrik Zhang (USATT# 87832)'s rating went from 1742 to 1717 at the SVTTC Sunday U2000 event from 6 Sep 2015. 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.