This page explains how Taishan Fan (USATT# 94095)'s rating went from 1490 to 1445 at the MDTTC Tuesday/Friday League event from 27 Dec 2019. 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.