This page explains how Alexander Rozhin (USATT# 202883)'s rating went from 1531 to 1645 at the ICC Butterfly America Open - 2018 held on 6 May 2018 - 6 May 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.