This page explains how Kyongsook Kim (USATT# 83553)'s rating went from 1515 to 1503 at the 2015 Triangle Chinese New Year Open Tournament held on - 22 Feb 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.