This page explains how William Wu (USATT# 222838)'s rating went from 1294 to 1286 at the MDTTC Tuesday/Friday League event from 13 Nov 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.