This page explains how Jane Parrish (USATT# 75309)'s rating went from 835 to 826 at the Spttc Saturday Night League event from 4 May 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.