This page explains how Ben Tone (USATT# 28736)'s rating went from 1209 to 1210 at the Maui USATT League event from 21 Mar 2004. 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.