This page explains how Jeff Nguyen (USATT# 74947)'s rating went from 1991 to 1950 at the Harlingen Winter Open R.R. Table Tennis Tournament held on - 16 Nov 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.