This page explains how Zili Wang (USATT# 86064)'s rating went from 1657 to 1640 at the SVTTC Sunday U2000 event from 18 Nov 2013. 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.