This page explains how Rick Chartrand (USATT# 23394)'s rating went from 1090 to 1216 at the Kaz Yamamoto & Bobby Tan RR Op held on - 9 Feb 2002. 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.