This page explains how Gary D. Harbeck (USATT# 6425)'s rating went from 1991 to 1993 at the Florida Orange Blossom Table Tennis Series Winter Classic Open 2015 held on - 21 Feb 2015. 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.