This page explains how Tim Connelly (USATT# 63315)'s rating went from 1898 to 1880 at the Middle Creek March Open held on - 7 Mar 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.