This page explains how Igor Bloshtein (USATT# 98077)'s rating went from 874 to 1023 at the OCTTA April 2018 Open held on 31 Mar 2018 - 1 Apr 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.