This page explains how Cormac O'Donovan (USATT# 1182290)'s rating went from 771 to 753 at the 2024 Butterfly Triangle Adult Ranking Championships held on 14 Jun 2024 - 16 Jun 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.