This page explains how Alexander Grimaldi (USATT# 1176424)'s rating went from 1382 to 1422 at the PPC 2023 December 2-Person Teams and Giant RR held on 9 Dec 2023 - 10 Dec 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.