This page explains how Hsueh-yen Lin (USATT# 78058)'s rating went from 1628 to 1619 at the LATTF event from 7 May 2011. 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.