This page explains how Woosik Sung (USATT# 220644)'s rating went from 1419 to 1420 at the Central Carolinas Super League event from 7 Dec 2017. 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.