This page explains how Prakash Annamraju (USATT# 1164489)'s rating went from 1774 to 1759 at the Butterfly Spin &Smash December Open held on 3 Dec 2021 - 5 Dec 2021. 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.