This page explains how Howard Lasnik (USATT# 78641)'s rating went from 1273 to 1225 at the QTTC May Open held on - 26 May 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.