This page explains how Hristo V Djoumaliev (USATT# 89637)'s rating went from 1664 to 1660 at the 2018 Rocky Mountain State Games held on 21 Jul 2018 - 22 Jul 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.