This page explains how Ying Lu (USATT# 73292)'s rating went from 2519 to 2521 at the Philly Open Tournament held on 27 Feb 2016 - 28 Feb 2016. 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.