This page explains how Zhantong Wang (USATT# 215595)'s rating went from 1924 to 1915 at the MDTTC Tuesday/Friday League event from 23 Feb 2018. 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.