This page explains how Thomas Kohann (USATT# 85121)'s rating went from n/a to 487 at the Arnold TT Championsips held on - 6 Mar 2011. 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.