This page explains how Hai He (USATT# 80044)'s rating went from 1526 to 1521 at the 13th FIT Open TT Championships held on - 31 Oct 2010. 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.