This page explains how Ava Fu (USATT# 89196)'s rating went from 615 to 614 at the Ping Pong Dojo event from 13 Sep 2012. 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.