This page explains how Robert G. Johnson (USATT# 15048)'s rating went from 1209 to 1232 at the Miami TTC One-day RR held on - 25 Apr 1998. 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.