This page explains how Timothy Richard Doerr (USATT# 5407)'s rating went from 1404 to 1401 at the Holland Killerspin Table Tennis Club event from 21 Dec 2013. 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.