This page explains how Yun Peng (USATT# 76263)'s rating went from 1556 to 1559 at the Intermediate League event from 20 May 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.