This page explains how Estee Ackerman (USATT# 81538)'s rating went from 1911 to 1900 at the Long Island's Woodbury Table Tennis League event from 16 Sep 2014. 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.