This page explains how Lisa Schrader (USATT# 69642)'s rating went from 1615 to 1617 at the Long Beach Table Tennis League event from 31 Jan 2009. 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.