This page explains how Guido Schnabel (USATT# 73730)'s rating went from 1979 to 1983 at the 5th Ben Hill Holiday Classic held on - 3 Jan 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.