This page explains how Hanson Qin (USATT# 81606)'s rating went from 1139 to 1141 at the Intermediate League event from 5 Jan 2012. 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.