This page explains how Samson Dubina (USATT# 9051)'s rating went from 2457 to 2427 at the Spin & Smash 2018 Summer Open held on 10 Aug 2018 - 12 Aug 2018. 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.