This page explains how Hristo V Djoumaliev (USATT# 89637)'s rating went from 1565 to 1563 at the NorthSide - Winter Classic 2023 held on 4 Feb 2023 - 4 Feb 2023. 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.