This page explains how Sean Ko (USATT# 82082)'s rating went from 1279 to 1280 at the 3rd Annual Robert Bluestone Memorial Event held on - 10 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.