This page explains how Gene Pios (USATT# 8365)'s rating went from 1203 to 1223 at the Rochester Open 2015 held on - 1 Mar 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.