This page explains how Lily Zhang (USATT# 31126)'s rating went from 2501 to 2517 at the USATT Team Trial 2013 held on - 9 Feb 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.