This page explains how Yanjun Gao (USATT# 32607)'s rating went from 2513 to 2509 at the Westchester 2016 January Open B held on 30 Jan 2016 - 31 Jan 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.