This page explains how Tom Metz (USATT# 73482)'s rating went from 1284 to 1234 at the Rainbow Lakes Table Tennis Club event from 18 Nov 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.