This page explains how Evan Tung (USATT# 80197)'s rating went from 2039 to 2005 at the 2014 Berkeley Open on JOOLA North American Tour held on - 14 Sep 2014. 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.