This page explains how David Roberts (USATT# 55604)'s rating went from 2247 to 2229 at the 2017 Meiklejohn North American Seniors Open held on 1 Jun 2017 - 4 Jun 2017. 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.