This page explains how Xeng Ly (USATT# 16)'s rating went from 1243 to 1278 at the NTTC December Open held on - 11 Dec 1994. 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.