This page explains how Steve Helton (USATT# 81330)'s rating went from n/a to 856 at the Dayton Round Robin Open held on - 7 Nov 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.