This page explains how Teddy Y. Tong (USATT# 1532)'s rating went from 1517 to 1503 at the South Bay Table Tennis League event from 21 Sep 2010. 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.