This page explains how John Traino (USATT# 17434)'s rating went from 1212 to 1195 at the Middle Creek June Open held on - 13 Jun 2009. 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.