This page explains how Peter Duchene (USATT# 279296)'s rating went from 1299 to 1275 at the 2024 CTTC Rating Level Open held on 29 Mar 2024 - 31 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.