This page explains how Madison Chao (USATT# 92066)'s rating went from n/a to 421 at the South Shore Sports/Butterfly Table Tennis Championships held on - 27 Oct 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.