This page explains how Mark Hazinski (USATT# 915)'s rating went from 1668 to 1669 at the Sears/Harvard Sports TTT held on - 16 Sep 1995. 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.