This page explains how Marc Duran (USATT# 34319)'s rating went from 2673 to 2666 at the MLTT Chicago held on 10 Nov 2023 - 12 Nov 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.