This page explains how Javier Arevalo (USATT# 229468)'s rating went from 1609 to 1663 at the Butterfly 2023 February BTTC held on 10 Feb 2023 - 12 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.