This page explains how Ethan Ruan (USATT# 91924)'s rating went from 371 to 471 at the 2014 Butterfly Atlanta Spring Open held on - 17 May 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.