This page explains how Jason T. Tin Lau (USATT# 75018)'s rating went from 1175 to 1165 at the California State Open held on - 22 Jun 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.