This page explains how Ming Zhang (USATT# 23562)'s rating went from 2206 to 2146 at the Swan Friday O2000 Team League event from 9 Oct 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.