This page explains how Matt Pitstick (USATT# 216822)'s rating went from 1467 to 1454 at the Spin & Smash December Open held on 6 Dec 2019 - 8 Dec 2019. 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.