This page explains how William Allen Blyth (USATT# 12161)'s rating went from 1395 to 1409 at the North-West LA Open held on - 15 Sep 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.