This page explains how Ray Huang (USATT# 81869)'s rating went from 1310 to 1320 at the LYTTC Friday Pro League event from 28 Dec 2013. 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.