This page explains how Ilya Kachkovskiy (USATT# 1171585)'s rating went from 1422 to 1434 at the Butterfly S&S January Open held on 26 Jan 2024 - 27 Jan 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.