| Coach Level: National | Certified Referee | Certified Umpire
31 Jan 2020 - 31 Jan 2020
This page explains how Samson Dubina (USATT# 9051)'s rating went from 2450 to 2449 at the Spin & Smash Winter Open held on 31 Jan 2020 - 31 Jan 2020. The links below take you to pages that describe various aspects of the ratings processor.
The ratings 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.