This page explains how Igor Bloshtein (USATT# 98077)'s rating went from 1275 to 1289 at the OCTTA- JULY 2019 OPEN held on 20 Jul 2019 - 21 Jul 2019. 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.