This page explains how Daniel Goodwin (USATT# 40278)'s rating went from 1980 to 1970 at the Fremont Table Tennis Academy League event from 23 Apr 2017. 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.