This page explains how Kevin Nguyen (USATT# 221139)'s rating went from 1251 to 1252 at the Oregon State Championships held on 8 Sep 2018 - 8 Sep 2018. 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.