This page explains how Johnny Chau (USATT# 57622)'s rating went from 2269 to 2275 at the LATTA Open held on - 2 Dec 2012. 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.