This page explains how Joanna Sung (USATT# 82231)'s rating went from 1868 to 1883 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.