This page explains how Nam Nguyen (USATT# 62461)'s rating went from 1927 to 1927 at the Butterfly MDTTC October Open held on - 21 Oct 2012. 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.