This page explains how Sihai Chen (USATT# 75555)'s rating went from 1343 to 1489 at the NE PA Open TT Championships held on - 1 Nov 2008. 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.