This page explains how Cong-Dat Pham (USATT# 264810)'s rating went from 390 to 385 at the Houston Elite League event from 19 Jul 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.