This page explains how Hyun Ook Ryu (USATT# 88326)'s rating went from 1463 to 1456 at the 2015 SPTTC Giant Round Robin held on - 24 Jan 2015. 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.