This page explains how Zhantong Wang (USATT# 215595)'s rating went from 1587 to 1559 at the MDTTC Tuesday/Friday League event from 10 Feb 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.