This page explains how Timothy La (USATT# 82848)'s rating went from 1646 to 1619 at the LYTTC September Open held on - 21 Sep 2014. 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.