This page explains how Jay Nelson (USATT# 12141)'s rating went from 1573 to 1556 at the Spin and Smash Summer Open held on 16 Aug 2019 - 18 Aug 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.