This page explains how Robert Trudell (USATT# 60358)'s rating went from 1520 to 1503 at the Best of the West Open held on - 30 Sep 2012. 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.