This page explains how Giovanni Greaves (USATT# 84300)'s rating went from 1743 to 1923 at the OCTTA BUTTERFLY OPEN SUNDAY JANUARY 21, 2024 held on 21 Jan 2024 - 21 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.