This page explains how Sergey Semenov (USATT# 97877)'s rating went from 1604 to 1529 at the 2024 ICC JOOLA Spring OPEN held on 2 Mar 2024 - 3 Mar 2024. 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.