This page explains how Jimmy Dorrell (USATT# 60099)'s rating went from 1577 to 1617 at the Central Texas RR held on - 7 Jun 1997. 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.